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ANALISIS NILAI KEBERLANJUTAN PENGELOLAAN BENTANG ALAM PASCA TAMBANG BATUBARA PADA AREAL IZIN PINJAM PAKAI KAWASAN HUTAN Asef Kurniyawan Hardjana; Herry Purnomo; Dodik R. Nurrochmat; Irdika Mansur
Jurnal Teknologi Mineral dan Batubara Vol 15 No 3 (2019): Jurnal Teknologi Mineral dan Batubara Edisi September 2019
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol15.No3.2019.1008

Abstract

Penelitian ini dilakukan di lokasi perusahaan tambang batubara yang terdapat pada empat kabupaten, yaitu: Kutai Kartanegara, Kutai Timur, Kutai Barat dan Berau. Keempat daerah tersebut merupakan daerah tambang terbesar di Kalimantan Timur. Tujuan penelitian adalah menganalisis keberlanjutan pengelolaan bentang alam pasca tambang batubara di areal Izin Pinjam Pakai Kawasan Hutan (IPPKH) yang dikelola perusahaan berstatus usaha Perjanjian Karya Pengusahaan Pertambangan Batubara (PKP2B). Metodologi yang digunakan adalah multi-dimensional scaling (MDS) berdasarkan lima dimensi, yaitu: ekologi, ekonomi, sosial budaya, hukum dan kelembagaan, serta infrastruktur dan teknologi. Hasil penelitian menunjukan bahwa keberlanjutan pengelolaan bentang alam pasca tambang batubara di lokasi tersebut memiliki dua kategori status, yaitu: (1) status cukup berkelanjutan, terdiri dari: dimensi ekologi (54,26), dimensi ekonomi (55,06), dimensi hukum dan kelembagaan (55,08), dimensi infrastuktur dan teknologi (60,79); (2) status kurang berkelanjutan adalah dimensi sosial (49,10). Terdapat 22 atribut yang dinilai sensitif (leverage attribute) bagi keberlanjutan pengelolaan bentang alam pasca tambang batubara pada kawasan tersebut, sehingga perlu diambil strategi kebijakan yang tepat untuk meningkatkan pengelolaannya, seperti melakukan rutinitas pengawasan, intervensi kebijakan dan perbaikan kinerja. Peran pemerintah sangat dibutuhkan di sini, agar strategi kebijakan memiliki kekuatan untuk ditaati dan fokus ke arah keberlanjutan bentang alam pasca tambang batubara di kawasan IPPKH.
PENGARUH KOMPOS CAMPURAN AMPAS DAUN SEREH WANGI DENGAN ABU TERBANG TERHADAP PERTUMBUHAN Cananga odorata Alfi Laila Zuhriansah; Irdika Mansur; Sri Wilarso Budi R.
Jurnal Teknologi Mineral dan Batubara Vol 16 No 2 (2020): Jurnal Teknologi Mineral dan Batubara Edisi Mei 2020
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol16.No2.2020.1077

Abstract

Abu terbang digunakan sebagai bahan campuran alternatif dalam pengomposan ampas daun sereh wangi sebagai pengganti dolomit. Campuran ampas daun sereh wangi dengan 2%, 5%, 10%, dan 15% abu terbang, ditambah 2% dolomit maupun tanpa penambahan bahan alkali dikomposkan terlebih dahulu. Kompos ditambahkan ke dalam tanah dengan perbandingan 1:1 b/b untuk mengetahui pengaruhnya terhadap pertumbuhan Cananga odorata. Parameter pertumbuhan yang diamati yaitu pertambahan tinggi dan diameter tanaman, jumlah akar sekunder, panjang akar, berat kering pucuk dan akar, biomassa total, serapan hara, serta nisbah pucuk akar yang dianalisis 6 minggu setelah tanam. Analisis kandungan C-organik, N, P, K, Cu, Mn, Cd, Pb, dan As dilakukan pada media dan jaringan tanaman yang mendapat perlakuan tanah dengan penambahan kompos dari campuran ampas daun sereh wangi dengan 15% abu terbang (P6) dan dibandingkan dengan kandungan nutrisi yang sama pada media tanah tanpa kompos (K) maupun media dengan kompos dari campuran ampas daun sereh wangi dengan 2% dolomit (P2). Perlakuan P6 menghasilkan N, P dan K total yang cenderung tinggi, meningkatkan akumulasi dan serapan N hingga 20%, serta pH media tanam yang stabil pada kondisi netral. Perlakuan P6 juga menghasilkan konsentrasi Pb, Mn, Cu, As dan Cd dalam media tanam, serta akumulasinya dalam jaringan C. odorata yang rendah. Perlakuan P6 ke dalam tanah dapat menurunkan akumulasi Mn dan Cu dalam jaringan C. odorata. Berdasarkan hasil tersebut, kompos dengan campuran abu terbang dapat dimanfaatkan sebagai bahan alternatif pengganti kompos dengan campuran dolomit.
BIOREMEDIASI AIR ASAM TAMBANG BATUBARA DENGAN PENGAYAAN BAKTERI PEREDUKSI SULFAT DAN PENAMBAHAN SUBSTRAT ORGANIK Iwan Perala; Mohamad Yani; Irdika Mansur
Jurnal Teknologi Mineral dan Batubara Vol 18 No 2 (2022): Jurnal Teknologi Mineral dan Batubara Edisi Mei 2022
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol18.No2.2022.1232

Abstract

Air asam tambang (AAT) memiliki dampak negatif yang harus dikelola karena dapat menyebabkan pencemaran lingkungan dan mengganggu operasional pertambangan. Air asam tambang mengandung logam-logam berat terlarut yang berbahaya bagi ekosistem. Bakteri pereduksi sulfat (BPS) dapat digunakan dalam bioremediasi air asam tambang. Penelitian ini menganalisis pH, C-organik dan BPS yang tumbuh di sedimen air asam tambang batubara dan beberapa ekosistem lain, serta menganalisis C/N rasio dan pH dari substrat organik potensial. Tujuan penelitian adalah pemulihan AAT dengan pengayaan BPS indigenous dan penambahan substrat organik. Ekosistem yang diamati adalah sedimen AAT, lumpur sawah, sedimen mangrove, sedimen situ, sedimen selokan, dan tanah rhizosfer. Substrat organik yang diujikan berupa kompos eceng gondok, campuran lumpur sawah dengan serbuk gergajian kayu, kompos tandan kosong kelapa sawit (TKS), pupuk kandang ayam, pupuk kandang sapi, limbah pabrik susu, serta campurannya. Hasil penelitian menunjukkan BPS dapat ditemukan di semua ekosistem yang diteliti pada kisaran 5,85E+2 – 1,26E+5 MPN-unit/BKT. Nilai C/N rasio dengan variasi 9,23 - 89,5 memiliki korelasi negatif terhadap peningkatan pH. Pemberian substrat organik dengan konsentrasi 3, 5, 7 dan 10% membantu BPS dalam meningkatkan pH AAT hingga melebihi 6 dan menurunkan Fe sebesar 88,18 – 97,27%. Populasi BPRS tertinggi diperoleh pada perlakuan campuran TKS dan kotoran ayam dengan populasi 2,41E+12 MPN-unit/BKT.
Analysis of Soil Fertility on Revegetated Land after Nickel Mining in Tanjung Buli, East Halmahera Drakel, Arman; Arifin, Hadi Susilo; Mansur, Irdika; Sundawati, Leti
Agrikan Jurnal Agribisnis Perikanan Vol. 14 No. 1 (2021): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Soil fertility in land after nickel mining has a change in soil texture that changes both the profile color and the soil irregularity. Stable soil fertility can support plant growth. Damage to the physical properties of the soil due to the loss of the soil interest (solum) by the ongoing washing of the soil. This results in the loss of some cations in soil colloids, resulting in low acidity (pH) of the soil becoming acidic. Cation Exchange Capacity (CEC) as the amount of charge of cations absorbed by soil colloids at a certain pH. Another factor in the decline in CEC is the decreasing number of cation nutrients that can be exchanged. The relationship with reclaimed and revegetated land is influenced by climatic factors with rainfall intensity. Soil fertility on revegetated land with CEC value and C-organic content was very low. Such soil fertility conditions are found in the revegetated zone with large leaf acacia (A. mangium) vegetation; sengon (P. falcataria); ketapang (T. catappa) and waru (H. tiliaceus). Soils that have low soil nutrient content are characterized by low organic matter content, very low available P content, and low cation exchange capacity.
Diversity of Arbuscular Mycorrhizal Fungi at Kelicung Stands (Diospyros macrophylla Blume) In KHDTK Rarung, Central Lombok Utami, Desty Sasana Putri; Mansur, Irdika; Hilwan, Iwan; Haryantini, Baiq Azizah
Journal of Tropical Silviculture Vol. 14 No. 03 (2023): Jurnal Silvikutur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.14.03.216-222

Abstract

Kelicung tree (Diospyros macrophylla) is a native tree species of West Nusa Tenggara. It is a slow-growing tree with very good wood ornament, strength, and durability properties. Symbiotic mutualism between kelicung and mycorrhiza has not been documented. Mycrorrhiza is a mutualism symbiosis between fungi and plant roots that could improve plant growth due to increase nutrient and water absorbtion. Therefore, the objective of this study is to investigate mycorrhizal symbiosis in kelicung roots. Soil and root samples were taken in the Rarung Special Purpose Forest Area at 0 – 20 cm depth. Isolation and identification of arbuscular mycorrhizal fungi used screening and centrifugation methods to identify spore density, diversity, abundance, and frequency. Furthermore, root staining and colonization of arbuscular mycorrhizal fungi were carried out by observing the structure of vesicles, arbuscules, hyphae, and spores on Kelicung roots. The research results showed that the average number of spores found was 846 spores/50 g of soil. Spores were identified in two genera: Glomus sp and Acaulospora sp. Glomus spores found were round, the colour of the spores was yellow, the spores did not react when Melzer's solution was dropped, and the spore walls of the Arbuscular mycorrhizal fungi of the genus Glomus consisted of 1-2 layers of cell walls. Observation of root colonization, no structures of root arbuscular mycorrhizal fungi were found in Kelicung. Keywords: Acaulospora sp., Arbuscular mycorrhizal fungi, Diospyros macrophylla, Glomus sp., Kelicung
Analysis of Soil Fertility on Revegetated Land after Nickel Mining in Tanjung Buli, East Halmahera Drakel, Arman; Arifin, Hadi Susilo; Mansur, Irdika; Sundawati, Leti
Agrikan: Jurnal Agribisnis Perikanan Vol 14, No 1 (2021)
Publisher : Sangia Research Media and Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29239/j.agrikan.14.1.125-134

Abstract

Soil fertility in land after nickel mining has a change in soil texture that changes both the profile color and the soil irregularity. Damage to the physical properties of the soil affects the soil nutrients needed by plants. Several physical and chemical properties of soil are influenced by texture including soil plasticity, soil permeability, ease of cultivation, lack of soil fertility and productivity. Stable soil fertility can support plant growth. Damage to the physical properties of the soil due to the loss of the soil interest (solum) by the ongoing washing of the soil. This results in the loss of some cations in soil colloids, resulting in low acidity (pH) of the soil becoming acidic. Cation Exchange Capacity (CEC) as the amount of charge of cations absorbed by soil colloids at a certain pH. Another factor in the decline in CEC is the decreasing number of cation nutrients that can be exchanged. The relationship with reclaimed and revegetated land is influenced by climatic factors with rainfall intensity. Soil fertility on revegetated land with CEC value and C-organic content was very low. Such soil fertility conditions are found in the revegetated zone with large leaf acacia (A. mangium) vegetation; sengon (P. falcataria); ketapang (T. catappa) and waru (H. tiliaceus). Soils that have low soil nutrient content are characterized by low organic matter content, very low available P content, and low cation exchange capacity.
Growth and physiology responses of Samanea saman inoculated with arbuscular mycorrhizal fungi in silica post-mining soil media using biodegradable pots Harus, Johanes S; Budi, Sri Wilarso; Sukendro, Andi; Mansur, Irdika
Journal of Degraded and Mining Lands Management Vol. 12 No. 1 (2024)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2024.121.6613

Abstract

Arbuscular mycorrhizal fungi (AMF) and biodegradable pots are environmentally friendly and enhance plant growth in adverse soil conditions. These studies explored AMF interactions and biodegradable pots in physiology, growth, and the uptake of nutrients in Samanea saman seedlings. The present research interactive effects of biodegradable pots with different compositions and raw material sizes with and without AMF inoculation on S. saman grown in silica post-mining soil media. Results indicated AMF inoculations significantly improved leaf chlorophyll content, photosynthetic rate, heights, diameters, biomass, as well as nutrient absorption of S. saman as compared with non-inoculated plants in biodegradable pots. AMF and biodegradable pots composed of 15% used newspaper, 70% compost, 5% cocopeat, and 10% rock phosphate showed the best results and increased the leaf chlorophyll content, photosynthesis rate, height, diameter, and total biomass of the plants by 161.1%, 208.7%, 263.6%, 118.1%, and 269.9%, respectively, compared to biodegradable pots composed only of used newspaper. Additionally, uptake of the nutrients nitrogen, phosphate, potassium, and magnesium increased by 365%, 800%, 369%, and 250%, respectively. By the fourteenth week after transplanting, the C/N ratio of the organic pot decreased significantly. Thus, AMF and biodegradable pots containing compost and rock phosphate interact positively and enhance the growth of S. saman under adverse soil conditions. These findings suggest that biodegradable pots containing compost and rock phosphate show potential as more environmentally friendly replacements for plastic bags (polybags) as growth medium containers for seedling production.
Optimasi Kinerja Balai Penelitian Dan Pengembangan Lingkungan Hidup Dan Kehutanan Aek Nauli Di Sumatera Utara Henry Elvin Simamora; Manuntun Parulian Hutagaol; Irdika Mansur
Jurnal Manajemen Pembangunan Daerah Vol. 17 No. 1 (2024)
Publisher : Program Studi Manajemen Pembangunan Daerah. Fakultas Ekonomi dan Manajemen. IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jurnal_mpd.v16i1.55593

Abstract

ABSTRACT The Aek Nauli Environment and Forestry Research and Development Center (BP2LHK Aek Nauli) has a relatively high budget absorption rate, averaging 96.96% from 2012 to 2016. However, this high budget absorption rate does not necessarily imply that the performance and budget management at BP2LHK Aek Nauli are perfect. Issues such as expenditure accumulation at the end of the year and discrepancies between planned and actual budget absorption on a monthly basis still persist. This study aims to recommend performance improvement strategies for the Aek Nauli Environmental and Forestry Research and Development Center using the SWOT method. The research results identified 10 strategies to enhance performance at BP2LHK Aek Nauli, including (1) Improving commitment to adhere to previously created documents, (2) Enhancing communication for rapid information dissemination related to the latest regulations, (3) Increasing routine evaluation and internal supervision to enhance compliance with regulations, (4) Allocating Non-Tax Revenue Budget (PNBP) to programs linked to seasonal variations, (5) Creating alternative budget arrangements, (6) Improving the quality of human resources to understand performance measurement processes, (7) Enhancing communication among employees regarding service, performance, and performance measurement, (8) Formulating activities aligned with the vision and mission, resulting in excellent public service, (9) Improving cooperation for utilizing research results with local stakeholders, and (10) Enhancing the dissemination of research findings. Keywords: BP2LHK, Budget Absorption, Strategy, SWOT
Abundance and potency of Non-Symbiotic Nitrogen-Fixing Bacteria in Padang Sapu-sapu, Pejem Village, Bangka Hermiati, Hermiati; Nurtjahya, Eddy; Mansur, Irdika
BERKALA SAINSTEK Vol 9 No 2 (2021)
Publisher : Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/bst.v9i2.20057

Abstract

Padang sapu-sapu soil is similar with post-tin mining soil in its white sand texture and poor nutrient. One factor causes the disturbed land in Bangka Belitung islands is tin mining activity. One method to rehabilitate marginal soil is by utilizing the potential nonsymbiotic N2-fixing bacteria, which are able to fertilize the soil and is able to provide macro nutrient. This study aims to measure the abundance and potency of non-symbiotic N2-fixing bacteria in padang sapu-sapu, Pejem Village, Bangka. The site selection is determined by purposive sampling method and interviews and the samples were collected randomly. Isolation used selective media Ashby'`s Monitol Agar and Azospirillum media. Morphological characterization was conducted on isolates and a series selective test was carried out, i.e. hipersentivity test, hemolysis test, IAA phytohormone test and nitrogenase test. The study of the abundance population of non-symbiotic N2-fixing bacteria of two different locations showed that the total bacterial population in padang sapusapu is very small compared to its lowland forest. Isolate Azotobacter sp. TH105(a) from the lowland forests is potential as natural fertilizer.
Why is Multi-Business Forestry Needed to Overcome the Low Performance of Forestry Governance and Food Security in Indonesia? Suryanto, Suryanto; Nurrochmat, Dodik Ridho; Tarigan, Suria Darma; Siregar, Iskandar Zulkarnaen; Yassir, Ishak; Silalahi, Mangarah; Mansur, Irdika; Harisson, Rhett D.; Wahyudi, Agus; Abdulah, Lutfy
Forest and Society Vol. 8 No. 2 (2024): DECEMBER
Publisher : Forestry Faculty, Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/fs.v8i2.32529

Abstract

The 0.6% contribution of the forestry sector to GDP is considered very low despite 64.1% of Indonesia's land area being allocated as forests. Most of the 64.8% production forest allocated is not yet optimized for strengthening national food security, in which Indonesia is ranked 65th in the world. Therefore, an innovative forest management system is needed to synergize timber and non-timber production. This paper presents a multi-business forestry (Mb-F) implementation strategy analyzed through a dynamic system-based multi-criterion decision-making tool named Super Model Mb-F (SM Mb-F). SM Mb-F is built based on a causal loop diagram (CLD), which describes the dynamic relationship between land typology suitability and decisions related to the type of business, commodities, land use area, workload, and financing for many variables relating to 5M business principles and sustainability. Results showed that CLD formulated in 280 sub-models in a total of 4,764 decision variables with an error deviation of 6.4%. The SM Mb-F simulation on two sample concession units produces a projected increase in wood supply, employment, and state revenue, plus the provision of new functions such as food, NTFP, and environmental services. These benefits are obtained by business feasibility. Assuming that gradually until 2030, the Mb-F can be implemented in 32% of Indonesia's production forests, then by 2045, it is projected that there will be an increase in wood production by 296.8%, state revenue by 654.3%, and labor absorption by 985.7%, as well as adding food production up to 19.36 M tons. This is because the land use efficiency of the current operation of forest concessions following the Annual Allowable Cut (AAC) under the selective cutting and replanting system in Indonesia (TPTI) is only about 3% of the total area of forest concession. Assuming the cutting cycle is 35 years, timber could be extracted in 1/35 of the total forest concession area. Implementing Mb-F will significantly improve the land use efficiency from about 3% to 90%.  The Mb-F will also restrain the rate of decline in carbon stocks, which is deeper if governance is still under the BAU scenario. This research suggests further global research, emphasizing the importance of innovative models for sustainable forestry governance and food security worldwide.
Co-Authors , Amisnaipa . Wahyudi AA Sudharmawan, AA Abdonia W. Finmeta Abdurrani Muin ABIMANYU D. NUSANTARA Abu Bakar, Palah Ade Wachjar Aditya Rizky Priatama Aditya Rizkyandana Agnitje Rumambi Agus Ari Subagio Agus Purwito Agus Wahyudi AHMAD JUNAEDI Albasri Albasri Albasri Alwysihah, Hafid Anas Miftah Fauzi Andi Sukendro Andi, Arya Fajar Art C Andry Indrawan Andry Indrawan Anna Juliarti Arief Sabdo Yuwono Armaiki Yusmur Arman Drakel Arman Drakel, Arman Armila R Male Arum Sekar Wulandari Arya Panji Wicaksono Asef Kurniyawan Hardjana Asrianti Arif Asrianti Arif Asrianti Arif Atang Sutandi Azahra, Kharisma Aulia Aziz, Sandra Bambang S. Purwoko Bramasto Nugroho Budi Hartoyo BUDI HARTOYO, BUDI Budi Prasetya Budi R, Sri W. Budi Tjahjono Butolo, Ivana Cahyo Wibowo Cahyo Wibowo Cahyono Agus Citra Rahmatia D. Wasgito Purnomo Daniswati, Nisa Dede J Sudrajat Dede J. Sudrajat Dede J. Sudrajat Dede J. Sudrajat Dede Jajat Sudrajat Dedi Budiman Hakim Destia Ariani Dewi Wulandari Dewi Wulandari Dodik R. Nurrochmat Dodik Ridho Nurrochmat Dwi Guntoro Eddy Nurtjahya Ega Diany Ekawati . Elis Nina Herliyana ENDANG SUHENDANG Endang Suhendang Enny Widyati Entin Kartini Erdy Santoso Erfanda Irawan Faisal Danu Tuheteru Faisal Danu Tuheteru Faisal Danu Tuheteru Faisal Danu Tuheteru Febrian Ari Nugroho Fikri Maulana, Ahdiar Fitri Arum Sekarjannah Fransisca Yosina Regina Luturmas H Husna Hadi Susilo Arifin Hamim Hamim Hariadi Propantoko Harisson, Rhett D. Harus, Johanes S Haryantini, Baiq Azizah Hasan, Arif Helga Sugiarti Henry Elvin Simamora Hermiati, Hermiati Herry Purnomo Hifzil Kirmi Husada, Muhamad Hadid Husna Husna Husna Husna Husna Husna Hutagaol, Manuntun Paruliah I Nengah Surati Jaya Ihsan Noor Irnayuli R. Sitepu Ishak Yassir Iskandar Iskandar Iskandar Z. Siregar ISKANDAR ZULKARNAEN SIREGAR Istikorini, Yunik Istiqomah Samal Iswandi anas Iwan Hilwan Iwan Perala J Jusniar JOHN DODD Joni Tefnai Julius D. Nugroho Juniarto, Arief Kapp, Gerald Kartika Megawati Kartini Kramadibrata Kartini Kramadibrata Kartodihardjo, Hariadi Lailan Syaufina Lana Saria Latifah K. Darusman Latifah K. Darusman Leti Sundawati Lubis, Rizky Febriana Br Lukman M. Baga Lutfy Abdulah M A Chozin Maman Turjaman Maria Paulina Marlin Sefrila Maya Melati Melya Riniarti Miftahul Mawaddah Miranda H. Hadijah Miska, Moch. Ega Elman Moh. Yani Mona Fhitri Srena Muhammad Ardiansyah Muhammad Masyhuri Muhammad Ridwan Baihaqi Muhd Indarwan Kadarisman Muis, Ridwan Munif Ghulamahdi Nina Mindawati Nitya Ade Santi Nitya Ade Santi Noor Farikhan Haneda Nurhasybi Nurhasybi Nurheni Wijayanto Nurul Khumaida Omo Rusdiana Padilah, Sinta Nur Panca Dewi Panca Dewi Manohara Karti PETER JEFFRIES Prijanto Pamoengkas Prijanto Pamungkas Priyanto Purwono Purwono, Purwono Purwono, Purwono Puspita Laksmi Maharani Rahayu WIDIASTUTI RAHAYU WIDYASTUTI Rahma Sari Rahmah, Hanifa Rahmat Saputra Rahmatia, Citra Rakhman , Rizali Raudhatunisya, Meuthea Najlaa Ria Astuti Rian Adiwicaksono Rian Prakosa Wijaya Rifa’ Atunnisa Rina Kristanti Rina Kristanti Risa Rosita Risa ROSITA Risna Trisnawati Rita Kartika Sari ROSITA, Risa Safriati Safriati Sandra Aziz Sarah Asih FAULINA Sari Yulia Hasibuan Sedek Karepesina Sefrila, Marlin Sekarjannah, Fitri Arum Selvi Chelya Susanty Silalahi, Mangarah Siregar , Elisa Weber Siregar, Ulfah J SOEDARMADI SOEDARMADI Soeryo Adiwibowo Sri Handayani Sri Muryati Sri Muryati Sri Muryati Sri Muryati Sri Wilarso Budi SRIANI SUJIPRIHATI Steffani Silferansti Tak Sudirman Yahya Suharyono Suharyono Surahman Surahman Suria Darma Tarigan Suryanto Suryanto Suwondo Suwondo Taufan Nugraha Tirta Negara Tirta Negara Trikoesoemaningtyas Trikoesoemaningtyas Trikoesoemaningtyas Tuheteru, Edy Jamal Ulfah J. Siregar Ulfah Juniarti Siregar Utami, Desty Sasana Putri Wijayanti, Meilina Wijayanto, Nurheni Yadi Setiadi Yudi Setiawan Zaenal Abidin Zaenal Abidin Zuhriansah, Alfi Laila