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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Buletin Agrohorti Jurnal Ilmu Pertanian Indonesia SOCA: Jurnal Sosial Ekonomi Pertanian JOURNAL ON SOCIAL ECONOMIC OF AGRICULTURE AND AGRIBUSINESS Agrovigor: Jurnal Agroekoteknologi Jurnal Ilmu-Ilmu Peternakan (Indonesian Journal of Animal Science) AGRIVITA, Journal of Agricultural Science Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) agriTECH Jurnal Agro Jurnal Penelitian Pertanian Terapan Journal of Applied Geospatial Information Journal of Regional and Rural Development Planning Journal of Tropical Crop Science AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian HUKUMAH: Jurnal Hukum Islam Jurnal Agrium Jurnal Pusat Inovasi Masyarakat Journal of Agrosociology and Sustainability
Iskandar Lubis
Departemen Agronomi Dan Hortikultura, Fakultas Pertanian, Institut Pertanian Bogor (Bogor Agricultural University), Jl. Meranti, Kampus IPB Darmaga, Bogor 16680, Indonesia
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Medicine & Pharmacology Physics Social Sciences Other

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Nutrient Uptake of Paddy with Peat Humic Substance Application on Tidal Swamp Yartiwi, Yartiwi; Ghulamahdi, Munif; Sulistyono, Eko; Lubis, Iskandar; Sastro, Yudi
AGRIVITA Journal of Agricultural Science Vol 47, No 2 (2025)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v47i2.3889

Abstract

Numerous initiatives were carried out to enhance rice production in swampy areas, which required the implementation of suitable technology. The use of adaptive variety, soil, and water management have been reported as the main keys to agricultural culture on tidal swamps. Therefore, this study was conducted to analyze the effect of several levels of substance peat humic application on the growth and yield of rice in tidal swamps. A completely randomized design was also used with two factors and four replications between March to June 2022, in Karya Bakti, Rantau Rasau sub-district of Tanjabtim District, Jambi Province. The first factor was varieties IR-64 and Inpara-4, while the second was the use of humic substance in peat consisting of 0 g/plant, 0.04 g/plant, 0.08 g/plant, and 0.12 g/plant. The cultivation process included the planting of paddy seeds within buckets containing 10 kg of soil. The result showed that the optimal yield of rice varieties IR-64 and Inpara-4, when subjected to peat humic substance in saturated soil culture, was achieved at 0.12 g/plant. This was substantiated by the enhanced uptake of essential nutrients such as N, P, and K in the plants, resulting in superior plant biomass compared to other concentration levels.
Pengaruh Pemupukan Urea dan Varietas pada Tanaman Jagung (Zea mays L.) terhadap Produksi Biomassa dan Biji Fahmi, Muhammad Rasyid Noor; Lubis, Iskandar; Purnamawati, Heni
Buletin Agrohorti Vol. 13 No. 1 (2025): Buletin Agrohorti
Publisher : Departemen Agronomi dan Hortikultura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrob.v13i1.60720

Abstract

Jagung merupakan tanaman pangan yang mempunyai peran strategis dalam pembangunan pertanian dan perekonomian nasional. Produktivitas jagung sangat ditentukan oleh mutu genetik varietas yang ditanam dan pemupukan yang tepat. Kegiatan penelitian ini bertujuan mengetahui pengaruh pemupukan berbagai dosis pupuk urea terhadap dua varietas jagung yang ditanam melalui produksi biomassa dan biji. Penelitian dilakukan pada Januari hingga Mei 2023 di Kebun Percobaan Leuwikopo Departemen Agronomi dan Hortikultura, Institut Pertanian Bogor, Dramaga, Bogor, Jawa Barat. Penelitian dilaksanakan menggunakan rancangan petak terbagi dalam rancangan kelompok lengkap teracak dengan tiga kali ulangan. Perlakuan terdiri dari 2 faktor yaitu varietas dan dosis pupuk urea. Varietas sebagai petak utama dan dosis pupuk urea sebagai anak petak. Dua varietas jagung, BISI-18 (hibrida) dan Bisma (komposit) ditanam dan dipupuk dengan dosis urea 0, 175, 350, dan 525 kg ha-1. Peningkatan dosis urea hingga 525 kg ha-1 secara linier meningkatkan total bobot kering, bobot tongkol dengan kelobot, bobot tongkol tanpa kelobot, diameter tongkol, bobot biji per tongkol, dan bobot biji per plot. Tinggi tanaman, jumlah daun, diameter batang, panjang tongkol, dan nilai SPAD menunjukkan respons kuadratik dengan dosis Urea optimum masing-masing 461.25; 435; 350; 435 dan 518 kg ha-1. Dosis urea 439.25 kg ha-1 merupakan dosis optimum untuk mencapai produktivitas tinggi pada kedua varietas tersebut. Kata kunci: bobot tongkol, diameter tongkol, dosis optimum, produktivitas, total bobot kering
Population of vector and tungro disease incidence at dosage of nitrogen fertilizer in rice field Gunawan, Achmad; Purwono; Lubis, Iskandar; Widiarta, I Nyoman; Suwitono, Bayu
Jurnal AGRO Vol. 12 No. 1 (2025)
Publisher : Jurusan Agroteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/j.agro.45232

Abstract

One of the biotic threats that can reduce rice yield is tungro disease. This disease is spread with green leafhopper (Nephotettix virescens) vector. The population density of leafhoppers is one of the factors contributing to the increased incidence of tungro. Excessive nitrogen used in crop cultivation, especially rice, has been known to impact the population dynamics of insect pests. This study aims to determine the population development of green leafhoppers at different nitrogen doses. The study was conducted at the Muara Experimental Field, Bogor. The experimental treatment used three rice varieties representing susceptible varieties, resistant to green leafhoppers and resistant to tungro virus (Ciherang, IR64 and Inpari 36 Lanrang) and four levels of fertilization doses (without additional urea, Urea 250 kg ha-1, 350 kg ha-1 and 500 kg ha-1). The experiment used Split Plot design with three replication. The insect population in the field was found at the beginning of the observation and the peak of insect population density occurred at 6 WAP observationsVariety has a significant effect on insect vector population density and plant growth and yield in the field. The population density of green leafhoppers was higher in the Ciherang and IR 64 varieties than in the Inpari 36 Lanrang variety. Fertilization doses had no significant effect on the population of green leafhopper insects in the field except in the nymph phase in fertilization without the addition of urea and had no effect on growth and yield except on the number of tillers. The combination of resistant varieties and fertilization without the addition of urea reduced the population density of green.   ABSTRAK Cekaman biotik yang dapat menurunkan hasil padi salah satunya penyakit tungro. Penyakit ini disebarkan oleh vektor wereng hijau (Nephotettix virescens). Kepadatan populasi wereng menjadi salah satu faktor penyebab meningkatnya keberadaan penyakit tungro. Penggunaan nitrogen yang berlebihan dalam budidaya tanaman, terutama padi, telah diketahui berdampak pada dinamika populasi serangga hama. Penelitian ini bertujuan untuk mengetahui perkembangan populasi wereng hijau pada pemberian dosis nitrogen berbeda.Penelitian dilakukan di Kebun Percobaan Muara, Bogor. Perlakuan percobaan mengunakan tiga varietas padi yang mewakili varietas rentan, tahan wereng hijau dan tahan virus tungro (Ciherang, IR64 dan Inpari 36 Lanrang) dan lima taraf dosis pemupukan (tanpa tambahan pupuk urea, Pupuk Urea 250 kg ha-1, 300 kg ha-1 dan 500 kg ha-1). Percobaan mengunakan rancanngan Split Plot dalam RAK dengan tiga kali ulangan. Populasi serangga di lapangan ditemukan diawal pengamatan dan puncak kepadatan populasi serangga terjadi pada pengamatan 6 MST. Varietas berpengaruh nyata terhadap kepadatan populasi serangga vektor, pertumbuhan dan hasil tanaman di lapangan. Kepadatan populasi wereng hijau lebih tinggi pada pertanaman varietas Ciherang dan IR 64 dibandingkan pada varietas Inpari 36 Lanrang. Dosis pemupukan tidak berpengaruh nyata terhadap populasi serangga wereng hijau di lapangan kecuali pada fase nimfa pada pemupukan tanpa penambahan urea dan tidak berpengaruh terhadap pertumbuhan dan hasil kecuali pada jumlah anakan. Kombinasi varietas tahan dan pemupukan tanpa penambahan urea mengurangi kepadatan populasi wereng hijau menyebarkan virus tungro.   Kata kunci: Populasi, pupuk nitrogen, wereng hijau
Analysis of drought stress tolerance in doubled haploid lines of green super rice at the vegetative stage Nurhidayah, Siti; Purwoko, Bambang Sapta; Dewi, Iswari Saraswati; Suwarno, Willy Bayuardi; Lubis, Iskandar; Hadianto, Wira; Munandar, Arief
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 53 No. 2 (2025): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24831/jai.v53i2.63893

Abstract

Current climate change has caused drought in various regions, which has decreased rice yields. Green super rice (GSR) has the characteristic of being tolerant to water limitation. GSR lines were bred through anther culture technique to obtain doubled haploid (DH) plants. This study aimed to analyze the response of DH GSR lines to drought stress at the vegetative stage and identify potential lines based on the weighted selection index. The experiment was arranged in a randomized complete block design with three replications. The materials used consisted of twenty DH lines, Inpari 42 Agritan GSR, and Inpari 18 as check varieties, Salumpikit as a drought-tolerant check, and IR 20 as a drought-sensitive check. Qualitative data were analyzed using the non-parametric Friedman test. The result showed different responses among the lines for leaf rolling, leaf drying, and recovery ability. Line SN14 exhibited moderate leaf drying and showed improvement to mild tolerance during the recovery phase. Nine lines (SN12, 14, 32, 40, 51, 57, 58, 59, and 60) were selected using a selection index based on leaf rolling, leaf drying, and recovery ability. These lines can be further tested for drought tolerance tests until the reproductive stage, and the tolerant lines could be useful for future development. Keywords: abiotic stress; anther culture; climate change; selection index; water limitation
Planning Model of Integrated Livestock Area Based on Crop-Livestock Integration for Sustainable Rural Agribusiness Development in North Bolaang Mongondow District Mujio; Purwanti, Sri; Lubis, Iskandar
Jurnal Ilmu-Ilmu Peternakan Vol. 35 No. 2 (2025): August 2025
Publisher : Faculty of Animal Science, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jiip.2025.035.02.15

Abstract

Rural agribusiness in Indonesia still faces inefficiencies due to the separation between the crop and livestock subsectors. This study developed a new Integrated Farming System (IFS) model by linking biomass circulation, spatial-functional planning, and village institutional strengthening within the framework of integrated livestock areas. A mixed-methods approach was employed, combining QGIS-based spatial analysis, economic evaluation (R/C ratio, profit margin, break-even point), and a SWOT-based institutional assessment. The analysis results showed the availability of approximately 41,000 tonnes/year of crop residues (rice, corn, and coconut) and 10,800 tonnes/year of beef cattle manure as inputs for a closed system. The implementation of the model has been proven to increase farming efficiency, with the R/C ratio increasing from 1.34 to 1.72, profit margins increasing by 26.7%, and the break-even point decreasing by 18%.  Theoretically, this study expands IFS research, which is generally limited to the household scale, by integrating it into a regional planning perspective through spatial-functional zoning and institutional strengthening. This contribution positions IFS not only as a technical system but also as a model for sustainable rural agribusiness planning. In practical terms, this study recommends the establishment of agribusiness cooperatives, capacity building for farmers, and cross-sector policy harmonization as key implementation strategies. This study uniquely integrates biomass-based IFS with spatial-functional planning and institutional design, thereby enriching both the theory and practice of sustainable rural development.
Effect of organic and NPK fertilizers on flowering, pod formation, and seed production of cowpea (Vigna unguiculata L. Walp) Fitratunnisah; Purnamawati, Heni; Lubis, Iskandar
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 53 No. 2 (2025): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24831/jai.v53i2.65893

Abstract

Cowpea (Vigna unguiculata L. Walp), known as tolo beans in Indonesia, is a nutrient-dense legume consumed as young pods, dry seeds, or livestock feed. Despite its nutritional value and agronomic potential, cowpea productivity in Indonesia remains low. This study aimed to evaluate the effect of poultry manure and NPK fertilizers on flowering, pod formation, and seed filling of cowpea. The experiment was conducted from July to October 2024 at the Sawah Baru Experimental Field, IPB, using a randomized complete block design. Treatments included poultry manure at 0, 10, 20, and 30 tons ha-1 and NPK (16-16-16) at 0, 100, 200, and 300 kg ha-1. Results showed that poultry manure at 10-30 tons ha-1 and NPK above 100 kg ha-1 significantly increased the productive nodes at the ninth week after planting. Both fertilizers enhanced plant growth and yield. The highest average seed yield was obtained at 30 tons ha-1 poultry manure (3.64 tons grain ha-1) and 300 kg ha-1 NPK (3.38 tons  grain ha-1), highlighting the benefit of integrating organic and inorganic fertilization to boost cowpea productivity. Keywords: cowpea; chicken manure; NPK fertilizer; kacang tolo
Observasi Keragaan Ukuran Benih, Endosperma, dan Embrio Genotipe Padi (Oryza sativa L.) Tropis dengan Image Analysis: Observasi Keragaan Ukuran Benih, Endosperma, dan Embrio Genotipe Padi Tropis (Oryza sativa L.) dengan Image Analysis Fauzi, Ahmad Rifqi; Junaedi, Ahmad; Lubis, Iskandar; Ghulamahdi, Munif; Aswidinnoor, Hajrial
AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian Vol 8 No 2 (2024): AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/agrosainstek.v8i2.442

Abstract

Rice is important staple food in the world. One important input in rice production is seed vigor, is determined by seed characteristics such as seed size and shape. The Digital image processing could facilitate observations of seed size faster, large samples, produce accurate, and robust data. However, this study was designed to investigate size of seed, endosperm and embryo of 55 tropical rice genotypes using image analysis and correlation anlysis between characters. A total of 400 seeds, 40 endosperms, and 8 embryos containing each genotype were investigated for their size characteristics. The results of the investigation showed that genotype differences had a significant effect on size of seed, endosperm and embryo. The length of tropical rice seeds is included in the medium-very long seeds and has a significant positive correlation (α <0.01) with the weight of 1000 grain grains, seed area, shape of the seed (length-to-width ratio), and endosperm length. Embryo size characters (length, width, area, and circumference) have a significant positive correlation (α <0.05) with seed area. The results can be considered in the crop improvement of tropical rice plants in the future.
Growth Performance and Productivity of Several Soybean Genotypes (Glycine max L. Merr.) Cultivated at High Altitude Areas in Indonesia. Lubis, Iskandar; Atmaja, Ian Surya Fitra; Koesoemaningtyas, Tri; Ghulamahdi, Munif; Purnamawati, Heni; Shiraiwa, Tatsuhiko
Journal of Tropical Crop Science Vol. 8 No. 01 (2021): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jtcs.8.01.1-7

Abstract

The low productivity of soybeans (Glycine max) and the impacts of climate change have led to the need for adaptive varieties to high altitude to produce high yields. In this study, nine soybean genotypes from different geographic regions, tropical and subtropical, were tested. The aim of the research was to investigate the growth and productivity of different genotypes of soybean when grown in high-altitude environment. Results showed that the tropical genotypes, “Tanggamus” and “SC-1-8” from Indonesia, “Manshuu-masokutou” from China, and “San Sai” from Thailand, had longer growth duration than the subtropical genotypes, “Enrei” and “Fukuyutaka” from Japan, “Stressland” and “Ht-2” from the United States, and “Hakubi” from China. Tropical genotypes have greater growth values than subtropical genotypes as shown by taller plants, greater number of leaves and dry weight. Among the tropical genotypes, “SC-1-8”, which is a soybean line from IPB, showed the best growth rates and competitive crop yield, making it a potentially good candidate for high yielding soybean in Indonesia.
Evaluation of Source and Sink Capacity of New Cowpea Varieties Saidah, Faza Yasmin; Purnamawati, Heni; Lubis, Iskandar
Journal of Tropical Crop Science Vol. 10 No. 01 (2023): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jtcs.10.1.38-45

Abstract

Cowpea (Vigna unguiculata (L.) Walp) is a perennial species originating from sub-Saharan Africa. Cowpea has long been cultivated in Indonesia and is classified as a species tolerant of drought and acid soil. Cowpea shows its adaptation to acidic soil (pH = 4.83) by being able to produce 50% to 60% of the seed weight under optimum conditions. This enhances the potential of cowpea to be used and developed as one of the current food options. This research was carried out to optimise of cowpea productivity by studying the relationship between the source and sink of cowpea. This research was conducted from December 2020 to March 2021 at the Cikabayan experimental station, Bogor Agricultural University. The experiment was set up in a completely randomized block design. Four cowpea varieties were evaluated, “Albina”, “Arghavan”, and “Uno”. The measured parameters consisted of photosynthesis rate, stomatal conductance, plant growth rate, the net assimilation rate of the number of pods, pod weight, number of seeds per pod, dry seed weight, the weight of 100-seeds, and productivity. The cowpea varieties did not show significant differences in the rate of photosynthesis, stomatal conductance, plant growth rate, and net assimilation rate. Photosynthesis rate in the three cowpea varieties ranged from 29.20 to 31.77 mol. m⁻².s⁻1 at 50% flowering, and from 17.01 to 19.79 mol.m⁻².s⁻1 at the first harvest. The three cowpea varieties in this study showed no differences in their source-sink capacity and productivity.
Response of Cowpea Growth, Yield and Organic Acid Secretion in Acidic Soil to Variability in Population and Minus One Element Fertilizer Test Gustiningsih, Dini; Purnamawati, Heni; Lubis, Iskandar; Syukur, Muhamad; Kondo, Tomohiro; Higuchi, Hirokazu
Journal of Tropical Crop Science Vol. 10 No. 03 (2023): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jtcs.10.03.196-204

Abstract

Cowpea is a legume with the potential to serve as an alternative food source to replace soybeans in Indonesia; soybeans are primarily used in traditional foods such as tempeh and tofu. Currently, 70% of Indonesia's soybean demand is met through imports. Cowpea exhibits the ability to thrive in suboptimal soils with low fertility levels. One of the major challenges in Indonesian agriculture is the prevalence of acidic soils, which are typically deficient in essential nutrients. Notably, a lack of phosphorus (P) is a significant limiting factor affecting crop productivity in these acidic soils. To address this issue, a study was conducted to investigate how cowpea can adapt and grow in acidic soil conditions. The first experiment aimed to understand the impact of plant density and fertilization methods on the growth and yield of cowpea. The results indicated that planting one cowpea plant per hole resulted in a higher number of leaves and branches. Additionally, the treatment with complete NPK showed a higher number of pods, although this was not significantly different from the treatment with reduced phosphorus (minus P). These findings suggest that cowpea can thrive in acidic soil even under conditions of phosphorus deficiency. Cowpea has developed an external adaptation mechanism through the secretion of organic acids from its roots to survive in low-phosphorus acidic soils. As a follow-up to these findings, a second experiment was conducted to identify the types of organic acids secreted by cowpea roots under conditions of phosphorus deficiency, using High-Performance Liquid Chromatography (HPLC). The results revealed that the organic acids produced by cowpea root exudates were primarily malic acid and oxalic acid. These research outcomes provide valuable information for growers, indicating that cowpea can be successfully cultivated in acidic soils. Cowpea's ability to produce organic acids allows it to thrive in such environments even when phosphorus levels are low.
Co-Authors , Yudiwanti - Suwarno - Suwarno - Triwidiyati . Suwarno Achmad Gunawan Achmad Gunawan Adi, Defiyanto Djami Adinda Soraya Nasution Afifah, Septi Nur Ahmad Ghozi Manshuri Ahmad Ghozi Mansyuri AHMAD JUNAEDI Ahmad Junaidi Ahmad Junaidi Ahmad Rifqi Fauzi Ahmad Zamzami Aidi Noor Ananda Diah Oktaviani Andrea Emma Pravitasari, Andrea Emma Arinta, Kistia Asep Hambali Atmaja, ian Surya Fitra Bagus Arrasyid Bambang Sapta Purwoko Boedi Tjahjono Butar Butar, Dewi Valentina Chiharu Hongo, Chiharu Danner Sagala Darmasandi, Arjuna Puji Dede Kismantoro Deni Suhendar Desta Wirnas Dewi Valentina Butar Butar Didi Darmadi, Didi Didy Sopandie Eko Sulistyono Endah Retno Palupi Erika Santi Faadhilah, Fajar Fahmi, Muhammad Rasyid Noor Faisal Faisal Faqih Udin Fathnoer, Veronica Firdaus Puja Santana Fitratunnisah Fitriyah Nurul Ghulamhdi, Munif Gunawan, Achmad Gustiningsih, Dini HAJRIAL ASWIDINNOOR Hambali, Asep Harahap, Ade Tika Sari Hidayah , Riska Firotul Higuchi, Hirokazu Hiroshi Ehara Hiroshi Ehara Hiroshi Ehara Homma, and Koki Homma, Koki I Nyoman Widiarta I Nyoman Widiarta Ilham iwan Tona Iswari Saraswati Dewi Jayawarsa, A.A. Ketut Khairil Anwar Khursatul Munibah Kistia Arinta Koki Homma Kondo, Tomohiro Kurniawan, Dede Yudo Luh Made Indah Sri Handari Adiputra Luh Putu Ratna Sundari M A Chozin M A Chozin Maisura Maisura Manullang, Frisca Anggriani Marlinda, Barirah Maudy Susanti Maulana, Arlingga Ichwan Megayani Sri Rahayu Miftakhul Bakhrir Rozaq Khamid Muhamad Ahmad Chozin Muhamad Syukur Muhammad Firdaus Lubis Muhammad Firdaus Lubis Muhammad Hasjim Bintoro Djoefrie Hasjim Bintoro Djoefrie Mujahid, Sitta Mujio Munandar, Arief Munawaroh, Laili Munif Ghulamahdi Novita Niken Putri Ulayyah Nur Fa'izah Zainal Ospa Pea Yuanita Meishanti Purwono Purwono Purwono Rakhman Adhiatma Renica Nurhermawati Roedhy Poerwanto Saidah, Faza Yasmin SANTUN R.P SITORUS Septi Nur Afifah Shiraiwa, Tatsuhiko Siti Nurhidayah Siti Ria Chaerunisa Sopandie, Didie Sri Astuti Rais Sri Purwanti Sugiyanta Supijatno Suwarno - Suwarto Suwarto Suwitono, Bayu Tatsuhiko Shiraiwa Titi Candra Sunarti Titiek S. Yuliani TRI KOESOEMANINGTYAS Trikoesoemaningtyas Widiatmaka Willy Bayuardi Suwarno Willy Monika Yohansyah Willy Monika Yohansyah Wira Hadianto, Wira Yamamoto, dan Yoshinori Yartiwi, Yartiwi Yati Astuti Yudi Sastro Yuti Giamerti, Yuti