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All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Jurnal Silvikultur Tropika (JST) Forum Pasca Sarjana Jurnal Ilmu Tanah dan Lingkungan Indonesian Journal of Geography Bumi Lestari Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Jurnal Pembangunan Wilayah dan Kota Jurnal Ilmu Lingkungan Jurnal Agrista Journal of Tropical Soils Jurnal Kawistara : Jurnal Ilmiah Sosial dan Humaniora Jurnal Penelitian Hutan dan Konservasi Alam JURNAL ANALISIS KEBIJAKAN KEHUTANAN Jurnal Agro Ekonomi Jurnal Pengkajian dan Pengembangan Teknologi Pertanian Jurnal Penelitian Tanaman Industri Wacana, Jurnal Sosial dan Humaniora Jurnal Ilmu Ternak Veteriner Journal of Degraded and Mining Lands Management AGRIVITA, Journal of Agricultural Science Journal of Regional and City Planning Indonesian Journal of Geospatial Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Ecogreen Journal of Information Systems Engineering and Business Intelligence Jurnal Zeolit Indonesia Jurnal Tataloka Jurnal Ilmu Produksi dan Teknologi Hasil Peternakan INTENSIF: Jurnal Ilmiah Penelitian dan Penerapan Teknologi Sistem Informasi JURNAL ILMIAH GEOMATIKA MAJALAH ILMIAH GLOBE Jurnal Matematika Sains dan Teknologi SAINS TANAH - Journal of Soil Science and Agroclimatology Caraka Tani: Journal of Sustainable Agriculture Bina Hukum Lingkungan Jurnal Penelitian Sosial dan Ekonomi Kehutanan Agrisocionomics: Jurnal Sosial Ekonomi Pertanian Jurnal Segara International Journal of Remote Sensing and Earth Sciences (IJReSES) Jurnal Sosial Ekonomi Pekerjaan Umum Agrotechnology Research Journal Jurnal Penelitian Tanaman Industri (Littri) Jurnal Agro Ekonomi Jurnal Tanah dan Iklim Science and Environmental Journals for Postgraduate Jurnal Risalah Kebijakan Pertanian dan Lingkungan Jurnal Agroekoteknologi Terapan International Journal of Social Science, Educational, Economics, Agriculture Research, and Technology (IJSET) Bina Hukum Lingkungan Journal of Business, Social and Technology Eduvest - Journal of Universal Studies Jurnal Manusia dan Lingkungan Policy Brief Pertanian, Kelautan, dan Biosains Tropika AGRARIS: Journal of Agribusiness and Rural Development Research Amerta The International Journal of Remote Sensing and Earth Sciences (IJReSES) Biodiversitas Journal of Biological Diversity Jurnal Penelitian Transportasi Darat
Widiatmaka Widiatmaka
Department Of Soil And Land Resources, Faculty Of Agriculture, IPB University, IPB Darmaga Campus, Bogor, 16680, Indonesia
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Potential Decline in Domestic Rice Production Due to the Degradation of Land Functions from Paddy Fields to Other Uses: a Case Study in Banyumas Regency, Central Java, Indonesia Bondansari Bondansari; Widiatmaka Widiatmaka; Machfud Machfud; Khursatul Munibah; Wiwin Ambarwulan
Agrotechnology Research Journal Vol 9, No 1 (2025): Agrotechnology Research Journal
Publisher : Perkumpulan Agroteknologi/Agroekoteknologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/agrotechresj.v9i1.102718

Abstract

Access to food is a human right. The destruction of paddy fields due to changes in use in various regions in Indonesia affects the national food supply. The contribution of domestic rice is decreasing, and the dependence on imported rice is increasing. In the long term, this phenomenon will threaten efforts to fulfil the adequacy of the staple food rice for the growing population, thereby increasing the potential for a food crisis. This study analyses the decline in domestic rice sufficiency due to the destruction of paddy fields in Banyumas Regency, Central Java Province. The method used in this study is mixed, consisting of visual image interpretation, map overlay, and descriptive quantitative analysis. The results showed that the average rate of destruction of paddy fields in Banyumas Regency from 2007 to 2019 was 102.6 hectares per year, concentrated around Purwokerto District, which is the capital of Banyumas Regency . The potential loss of rice production is 1,189,580 kilograms per year of harvested dry grain, equivalent to IDR 5,709,984,000.00. 
Modeling the activity ratio of soil potassium using machine learning approach Desi Nadalia; Arief Hartono; Heru Bagus Pulunggono; Bambang Hendro Trisasongko; Widiatmaka Widiatmaka; Muhammad Fuady Emzir
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol. 22 No. 2 (2025): December
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/stjssa.v22i2.100102

Abstract

The potassium (K) Quantity-Intensity (Q-I) relationship results in important parameters, including the activity ratio of potassium at equilibrium (AReK), which indicates potassium availability in soil. Experiments to observe soil Q-I K relationship parameters are often complex, time-consuming, and do not include environmental variables. This research aims to model AReK using a machine learning (ML) approach. ML models applied are Random Forest (RF), Cubist, and Support Vector Machine (SVM) as the primary approaches, with Multiple Linear Regression (MLR) serving as a baseline. The dataset was derived from sixty-one observation points in Brebes, Central Java. The predictors were pH, organic carbon, clay, cation exchange capacity (CEC), exchangeable cations (Exc-Ca, Mg, K, Na), water soluble K, available K, K saturation, potential K, non-exchangeable K (NE-K), elevation, and slope. The response variable was the AReK. Variable selection was performed using Pearson correlation to eliminate highly correlated predictors and reduce multicollinearity. Exactly 75% of the data was utilized as the training set and 25% as the test set. Three metrics, i.e., MAE, RMSE, and R², were used in model evaluation. The results showed that the Cubist model could predict AReK with high accuracy (R2=0.9437) and low RMSE (0.5701) and MAE (0.3514). Based on the Cubist model, Exc-K, Exc-Mg, CEC, and Exc-Ca were the most important variables for predicting AReK. This model can be employed to support site-specific fertilizer recommendation strategies. To improve the performance of the model, it is necessary to add other predictor variables (e.g., soil physical properties, clay minerals, rainfall, temperature and soil moisture).
Assessing Land Use Intensity and Ecosystem Service Dynamics in Citarum Watershed, Indonesia Irmadi Nahib; Widiatmaka Widiatmaka; Suria Darma Tarigan; Wiwin Ambarwulam; Fadhlullah Ramadhani
Caraka Tani: Journal of Sustainable Agriculture Vol 40, No 2 (2025): April
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v40i2.93122

Abstract

Changes in land use and land cover (LULC) significantly impact ecosystem services (ES), often leading to land degradation and disrupting natural balance. This study examines how LULC changes have influenced total ecosystem services (TES) in Citarum Watershed over the past decade. Specifically, researchers analyze (1) the shifts in LULC and key ES components—water yield (WY), soil conservation (SC), and carbon storage (CS)—from 2010 to 2020, (2) the spatial relationship between land use intensity (LUI) and ES, and (3) the synchronization and distribution patterns of LUI and TES using a coupling coordination degree (CCD) model. The findings reveal significant LULC changes between 2010 and 2020, with bare/shrubland and agricultural areas expanding by 88.37% and 2.25%, while forest land and lakes declined by 0.78% and 0.09%. These transformations affected ES values, as WY and CS decreased by 15.01% and 4.98%, whereas SC increased by 12.03%. Overall, TES declined by 7.54%, with the steepest reduction (17.70%) observed in the downstream region. The coupling coordination analysis highlights an imbalance between LUI and TES, with 65 to 68% of sub-districts classified as imbalanced. These results underscore the urgent need for integrated land-use planning strategies to restore ecosystem balance and promote sustainability in Citarum Watershed.
Multi-dimensional rapid appraisal technique for evaluating the sustainability of energy plantation forests in East Lombok District, Indonesia BUDI HADI NARENDRA; WIDIATMAKA WIDIATMAKA; CECEP KUSMANA; LINA KARLINASARI; MACHFUD MACHFUD
Biodiversitas Journal of Biological Diversity Vol. 20 No. 4 (2019)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d200413

Abstract

Abstract. Narendra BH, Widiatmaka, Kusmana C, Karlinasari L, Machfud. 2019. Multi-dimensional rapid appraisal technique for evaluating the sustainability of energy plantation forests in East Lombok District, Indonesia. Biodiversitas 20: 1027-1033. The increased use of woody biomass as a renewable energy source should be supported by development of sustainable energy plantation forest. This study aims to evaluate the sustainability status of energy plantation forest in East Lombok District and to determine the leverage attributes affecting sustainability. The evaluation was carried out using rapid appraisal approach, consisting of multi-dimensional scaling (MDS) analysis to provide sustainability indices for ecological, economic and social dimensions, followed by Monte Carlo simulation to define the validity. Dominant attributes affecting the sustainability were assessed by sensitivity analysis. All analyses were executed using the R software. The evaluation of eight locations generally results in a quite sustainable status for ecological, social, and economic dimensions with the validity index values of 72.73%, 61.07%, and 58.49%, respectively. To maintain or enhance sustainability, some leverage attributes need to be prioritized for policy intervention. In the ecological dimension, increasing species diversity using some potential energy woody species should be prioritized. In the social dimension, optimizing the role and capability of forest farmer groups and their members is needed, while for the economic dimension, government should support the expanding area of energy plantation forest managed by each farmer.
Plankton biodiversity in various typologies of inundation in Paminggir peatland, South Kalimantan, Indonesia on dry season Dini Yunandar; HEFNI EFFENDI; WIDIATMAKA; YUDI SETIAWAN
Biodiversitas Journal of Biological Diversity Vol. 21 No. 3 (2020)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d210322

Abstract

Abstract. Yunandar, Effendi H, Widiatmaka, Setiawan Y. 2020. Plankton biodiversity in various typologies of inundation in Paminggir peatland, South Kalimantan, Indonesia on dry season. Biodiversitas 21: 1012-1019. The aim of the study was to analyze the typology of inundation areas and plankton biodiversity in Paminggir peatland, South Borneo, Indonesia. Typology of inundation was determined by image processing and spatial analysis using supervised classification method from Landsat 1994, 2014, 2019. Plankton biodiversity was determined using purposive sampling in detected inundation from spatial analysis. Some environmental factors like temperature, Ph and DO were also analyzed. Confirmation of the results of spatial analysis of peatland typology made from overall accuracy and Kappa informed 88.48% and 0.8. The typology of permanent inundation decreased by 30% from 1994 to 2019 during the dry period from June to August of the total study area of 43275,584 hectares due to sedimentation, land conversion for settlement, and increase in water weeds. Inundation criteria with duration throughout the year were was categorized as permanent, whereas temporary inundation was tentative even in certain dry season. Plankton index biodiversity in permanent inundation was more varied compared to temporary inundation. Phytoplankton from the freshwater Chrysophyta group was more dominant, while zooplankton from the Nauplius group, which were the natural food for fish larvae always presented in the typology of permanent inundation.
Evaluating Accuracy and Temporal Consistency of Machine Learning Models for Land Use/Land Cover Mapping in the Cimanuk Watershed Salis Deris Artikanur; Widiatmaka; Wiwin Ambarwulan; Irmadi Nahib; Darmawan Listya Cahya; Afifuddin; Yudi Setiawan
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol 16 No 3 (2026): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Pusat Penelitian Lingkungan Hidup, IPB (PPLH-IPB) dan Program Studi Pengelolaan Sumberdaya Alam dan Lingkungan, IPB (PS. PSL, SPs. IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.16.3.284

Abstract

One of the critical watersheds in Indonesia is the Cimanuk watershed, which is recognized as a national priority watershed. Remote sensing plays a vital role in monitoring land use/land cover (LULC) in the Cimanuk watershed. Overall Accuracy (OA) and Kappa Accuracy (KA) are commonly used as primary measures of classification accuracy. In addition to these parameters, it is essential to examine the consistency and rationality of LULC classification over time. This study aimed to compare the accuracy and temporal consistency of three Machine Learning Models: Random Forest (RF), Support Vector Machine (SVM), and Classification and Regression Tree (CART) for LULC classification in the Cimanuk watershed using Sentinel-2 Multispectral Instrument (MSI) images for 2020 and 2025, processed in Google Earth Engine (GEE). The results indicate that RF has the highest accuracy, with 87.9% (OA) and 83.7% (KA) in 2025, and 83.6% (OA) and 77.9% (KA) in 2020. When examining inconsistent or irrational transitions between 2020 and 2025, CART accounted for 11.97% of these transitions, higher than RF and SVM. After applying temporal consistency correction to the 2020 LULC classification result, RF remains the best-performing classifier, achieving 90% (OA) and 86.5% (KA), followed by CART and SVM. These findings provide valuable insights into incorporating accuracy and temporal consistency assessments into time-series LULC analysis, serving as a reference for future LULC studies in watershed management and other geographic contexts.
ADOPTION OF THE PsPSP PACKAGE, PRODUCTIVITY, AND FARM FEASIBILITY OF SMALLHOLDER COCOA IN LUWU, SOUTH SULAWESI Taofik Herdian Nugraha; Widiatmaka; Khursatul Munibah
International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET) Vol. 5 No. 10 (2026): SEPTEMBER
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.22892835

Abstract

Smallholder cocoa productivity in Indonesia remains low, and the PsPSP cultural-control package (frequent harvesting, pruning, sanitation, fertilisation) is usually evaluated as a single bundle, so adoption of its individual components is rarely reported. This study describes adoption of the PsPSP components and their relationship with productivity and farm feasibility among smallholder cocoa farmers in Luwu Regency, South Sulawesi. Data were collected from 92 respondents across five cocoa-producing sub-districts. The sample was drawn with the Slovin formula from 1,165 mapped cocoa garden polygons, stratified by land cover and land suitability. Distributions are reported as medians with interquartile ranges. Only two components could be quantified, and adoption was uneven: fertilization was almost universal (91.3%) but overwhelmingly inorganic (organic fertilization only 7.6%), whereas pruning was practiced by fewer than half of the respondents (47.8%). Garden sanitation and frequent harvesting could not be quantified because these variables were not recorded. Median productivity was 226 kg/ha/year, less than one third of the smallholder average reported previously. Tree populations fell below the recommendation for 93.4% of respondents, while median stand age was only 11 years, indicating that planting density rather than stand age is the binding constraint. The enterprise is feasible on a cash cost basis (R/C 4.51), but only because reference cash costs are low; with a median garden of 0.44 ha the income actually received had a median of IDR 1.97 million per year, far below the provincial minimum wage. Production figures are self-reported, as 98.4% of producing respondents keep no farm records.
Multi-criteria decision making for determining landfill location in Malaka Regency, East Nusa Tenggara Province of Indonesia Rame, Leonarda Sofiani; Widiatmaka, Widiatmaka; Hartono, Arief; Firmansyah, Irman
Journal of Degraded and Mining Lands Management Vol. 9 No. 2 (2022)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2022.092.3405

Abstract

The absence of a landfill has increased the illegal waste disposal sites in Malaka Regency, which was established between 2013 and 2021. Therefore, this study aimed to analyze suitable and available land for the development of a landfill. The methodology used consisted of 2 analysis steps, namely land suitability and land availability. Land suitability was analyzed using a multi-criteria decision-making method, which included the slope, stone type/geology, lithology, soil type, soil texture, soil depth, soil drainage, distance from settlements, and water sources. The criteria were then weighted using the Analytical Hierarchy Process (AHP) and geographic information system for overlaying. Furthermore, the results of the land suitability analysis were used to determine its availability with the aid of spatial and regional planning (RTRW), land use, and forest area maps. The results showed that the highly suitable (S1) and available terrain for the landfill in Malaka Regency covered an area of 203.37 ha or 1.73% of the regency. Also, the analysis results indicated that there was still adequate land available for the landfill.
Vegetation dynamics of Sangkub watershed in North Sulawesi Province indicated by NDVI of Landsat data Djoharam, Veybi; Widiatmaka, Widiatmaka; Marimin, Marimin; Panuju, Dyah Retno; Tarigan, Suria Darma
Journal of Degraded and Mining Lands Management Vol. 10 No. 1 (2022)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2022.101.3991

Abstract

Vegetation can be an important indicator of ecosystem change, the influence of anthropogenic and non-anthropogenic factors. Therefore, it is important to study the dynamics of vegetation changes. One technique that can be used for vegetation analysis is the Normalized Difference Vegetation Index (NDVI). NDVI is an indicator of the active biomass that helps distinguish vegetation from other land cover and can provide information about changes in Spatio-temporal vegetation dynamics, thus allowing for assessment of the ecological conditions. This study aimed to investigate the dynamic of vegetation in the Sangkub watershed area located in North Sulawesi Province. This analysis used geospatial technology with the NDVI method, utilizing Landsat 5 and Landsat 8 satellite imagery data in three periods the year 2000, 2015, and 2020. The results showed that vegetation cover of the Sangkub watershed decreased substantially, whereas the non-vegetated area increased gradually over time.
The prediction of land use and land cover change and its impact on soil erosion and sedimentation in the Musi Hydropower-Plant catchment area in Bengkulu Province Sukisno, Sukisno; Widiatmaka, Widiatmaka; Purwanto, Moh. Yanuar Jarwadi; Noorachmat, Bambang Pramudya; Munibah, Khursatul
Journal of Degraded and Mining Lands Management Vol. 10 No. 4 (2023)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2023.104.4629

Abstract

The Musi Hydropower-Plant catchment area is susceptible to soil erosion and sedimentation. Therefore, this research aimed to predict land use and land cover changes (LULCC) as well as their impact on soil erosion and sedimentation in the Musi Hydropower-Plant catchment area. The prediction of LULCC was calculated using Land Change Modeler module on IDRISI Terrset, while soil erosion and sedimentation were estimated with the Revised Universal Soil Loss Equation (RUSLE) and Sediment Delivery Ratio (SDR) models. The result showed that forest cover and paddy fields decreased significantly from 18.580 ha and 4.044 ha to 12.907 ha and 2.019 ha, respectively, in the periods of 1993 to 2019 and were predicted to reduce until 2032. Meanwhile, the built-up area and dry agricultural land increased from 818 ha and 2.116 ha in 1993 to 2.229 ha and 5.778 ha in 2019, which is expected to increase until 2032. The estimation of soil erosion rate also gave an increase from 75 t/ha/year to 113 t/ha/year, continuing to reach 122 t/ha/year until 2032. The escalation of soil erosion rate contributed to the change of sediment yield from 68.048 t/year in 1993 to 103.190 t/year in 2019,which is estimated to reach 111.028 t/year. These results are expected to be used by decision-makers and policymakers for the operation of the Musi Hydropower-Plant and the catchment area maintenance.
Co-Authors - Bondansari A M Fuah A. M. Fuah, A. M. A.A. Ketut Agung Cahyawan W Aceng Hidayat Achmad Yamani Adil, Adityawarman Adrian Adrian Afifuddin Agus, Fahmuddin Akhmad Fauzi Akhmad Mediranto Alwan Rafiuddin Anas Miftah Fauzi Andi Massoeang Abdillah Andrea Emma Pravitasari, Andrea Emma Anita Primasari Mongan Ardiansyah Muhamad Arief Hartono Arief Samad Arifin, Hadi S Artikanur, Salis Deris Asdar Iswati Asep Anwar Nugraha Asep Sapei Asnath Maria Fuah, Asnath Maria Astiana Sastiono Atang Sutandi Auliya, Izhar B. Pramudya Baba Barus Bambang Hendro Trisasongko Bambang Pramudya Bambang Pramudya Bambang Pramudya Noorachmat, Bambang Pramudya Bambang Setio Budianto Benar Darius Ginting Soeka, Benar Darius Ginting Benar Darius Ginting-Soeka Bintoro, Mochamad H Boedi Tjahjono Bondansari Bondansari Bondansari Budi Hadi Narendra BUDI HADI NARENDRA Budi Mulyanto Budi Susetyo Cece Sumantri Cecep Kusmana Chaida Chairunnisa Chandrasa E Sjamsudin Daniel Djokosetiyanto Darmawan Listya Cahya Desi Nadalia Dharma Agustinus Sirait Didik Suharjito Didit Okta Pribadi Dini Yunandar Djoharam, Veybi Dodi Slamet Riyadi Dudung Darusman Dwi Putro Tejo Baskoro Dyah R Panuju Dyah Retno Panuju Eka Intan Kumala Putri Eko Wahyudi Budhi Utomo ELLYA REVOLINA, ELLYA Ema Suhaema Endang Hilmi Endang Suhendang Ernan Rustiadi Erni Johan Fadhlullah Ramadhani Fahri Setiawan Fahrizal Kreshna Yudichandra Fatmawaty Fatmawaty, Fatmawaty Firmansyah , Irman Firyadi Firyadi Frangky J. Paat Fransiscus Xaferius Herwirawan Hadi Susilo Arifin Hans Moravia Hartono, Arif Hefni Effendi Hendri Purnama Hermanu Widjaja Heru Bagus Pulunggono Hotland Sihotang I Made Geria I Made Geria, I Made I Wayan Rusastra I Wayan Rusastra I Wayan Rusastra I.F Poernomosidhi Poerwo Irmadi Nahib Irmadi Nahib Irman Firmansyah Irman Firmansyah Irman Firmansyah Irman Firmansyah Irman Firmansyah Irman Hermadi Irmansyah, Firman Iskandar Lubis Iswandi Umar Janthy Trilusianthy Hidayat Jupi Piji Aksen Juwarin Pancawati K MURTILAKSONO Kadarwan Soewardi Kadarwan Soewardi Katili, Hidayat Arismunandar Kholil Kholil Khursatul Munibah Koeswara, Dieta Arbaranny Komarsa Gandasasmita Kristini, Wanda Kukuh Murtilaksono Kukuh Murtilaksono Kukuh Nirmala Kurniawan, Rachman Kurniawan, Rachman Lailan Syaufina Leonarda Sofiani Rame LILIK BUDIPRASETYO Lina Karlinasari Litasari, Ulfah Choerunnisa Nurul M Ardiansyah, M M Hendrisman, M M S Engel M Yanuar J. Purwanto M. Bagus Pangestu M. Yanuar J. Purwanto M. Yanuar J. Purwanto M. Yanuar J. Purwanto M. Yanuar J. Purwanto Machfud Machfud Machfud Machfud Machfud Maradhy, Ermawaty Marenda Ishak S Marianus Komanik Keratorop Marimin , Marimin Marimin Marimin Marimin Marwan Hendrisman Meika Syahbana Rusli Meyliana Mey Lisanti Miranti Anisa Tejaningrum Mochammad Farkan Moh Nurul Iman Moh. Yanuar Jarwadi Purwanto Muhammad Amien H Muhammad Amir Solihin Muhammad Ardiansyah Muhammad Firmawan Muhammad Fuady Emzir Muji Esti Wahyudi Mukhammad Najib, Mukhammad Murod, Mamun Nandi Kusmaryandi Naoto Matsue Nata Suharta Nazam M. Nazriel, Rizal Syarief nFN Machfud Nia Rachmawati Nurhayati Nurhayati Nurlailita . Nurul Amaliyah Tanjung Nurul Khumaida Nurwadjedi Nurwadjedi Nurwadjedi Nurwadjedi, Nurwadjedi Omo Rusdiana Paulus B.K. Santoso Petrus Adam Pramudya, Bambang Prima Jiwa Osly Purwanto, Moh Yanuar Jarwadi Purwanto, Muhammad Yanuar J. Purwanto, Yanuar Jarwadi R. Sjarief Widjaja R.P. Santun Sitorus Rachman kurniawan Rachman, Noer F Rakhman Adhiatma Ramadhan, Risky Ramdhani Rame, Leonarda Sofiani Ridwan Adi Surya Rista Ardy Priatama Riyan Naufal Hays Ronny Soputan Rudi P Tambunan Rudi P Tambunan, Rudi P Rusli Anwar S H Sutjahjo S H Sutjahjo S Kahono S Sabiham S Sabiham S. Sabiham S.D. Tarigan S.P. Mulia, S.P. Sahara Saida Saida Saida, Saida Saksono Raharjo Salatnaya, H. Salis Deris Artikanur Salis Deris Artikanur Sambas Basuni Santun R. P. Sitorus Santun R.P Sitorus Santun R.P. Sitorus Santun R.P. Sitorus Santun Risma Pandepotan Sitorus Sarwono Hardjowigeno Setiardi P. Mulya Setyardi Pratika Mulya, Setyardi Pratika Setyardi Pratikamulya Setyo Pertiwi Setyono Hari Adi Sigit Santosa Siti Nurisjah Soentpiet, Nurhalis Sondita, M. Fedi Alfiadi Sri Lestari Munajati, Sri Lestari Sudarsono Sudarsono Sudarsono Sudirman Yahya Sukisno Sukisno, Sukisno Sumardjo Supiandi Supiham Suprajaka Suprajaka Suratman, Suratman Suria Darma Tarigan Surjono H. Sutjahjo Surjono H. Sutjahjo Surjono Hadi Sutjahjo Suwardi Suwardi Suwarli . Suwarno Suwarno Syaiful Anwar Syamsul Arifin Syarif Budhiman Syarif, Rizal Syartinilia . Taofik Herdian Nugraha Taryono Taryono Tatang Kurniawan Teti Arabia Titi Candra Sunarti Tivianton, Tommy Andryan Ulfah Choerunnisa Nurul Litasari Untung Sudadi Varian Triantomo Verawaty, Ivong Veybi Djoharam Veybi Djoharam Wening Sri Wulandari Widia Siska Winny Dian Wibawa Wiwik Yuniarti Wiwin Ambarwulam Wiwin Ambarwulan Wiwin Ambarwulan Wiwin Ambarwulan Wiwin Ambarwulan Wiwin Ambarwulan Wiwin Ambarwulan Wiwin Ambarwulan Wiwin Ambarwulan Wiwin Ambarwulan Wiwin Ambarwulan Wiwin Ambarwulan Wiwin Ambarwulan Ambarwulan Wuri Cahyaningrum Wuri Cahyaningrum, Wuri Yeni Herdiyeni Yudi Setiawan YUDI SETIAWAN Yudi Setiawan Yudi Setiawan4 Yunandar Yunandar Yuniar, P. S. Yusanto A Nugroho Yusanto A Nugroho, Yusanto A Yuwono, Probo Zaenal Abidin Zubair Syaifuddin