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ADAPTABILITY OF WHITE JABON (Anthocephalus cadamba MIQ.) SEEDLING FROM 12 POPULATIONS TO DROUGHT AND WATERLOGGING Sudrajat, Dede J.; Siregar, Iskandar Z.; Khumaida, Nurul; Siregar, Ulfah J.; Mansur, Irdika
AGRIVITA, Journal of Agricultural Science Vol 37, No 2 (2015)
Publisher : Faculty of Agriculture University of Brawijaya and Indonesian Agronomic Assossiation

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Abstract

 The study was carried out for investigation of the adaptability of white jabon seedlings from 12 populations to drought and water logging stresses in a controlled green house. The results showed that the adaptive responses of white jabon seedling to drought and waterlogging stresses were affected by genotype (population). The drought and waterlogging stresses significantly inhibited plant growth, biomass accumulation and allocation, leaf area, also decreased chlorophyll content, increased carotenoids contents, and accumulated free proline. Relative water content and specific leaf area tended to be higher in waterlogging and declined in drought stresses.  The result clearly indicated that white jabon seedlings were more adaptive to waterlogging than to drought stresses. Moreover, there were different responses to drought and waterlogging stresses between the twelve populations. Kampar, Gowa, Kuala Kencana and OKI populations exhibited higher growth performance and stress tolerance index to be adapted to waterlogging stress, while Gowa, Pomalaa and Kampar populations had relatively better growth performance in the drought stress. Keywords: Anthocephalus cadamba, genotype, growth, population, stress tolerance index 
PENGARUH TEKNIK PEMBENIHAN LANGSUNG DAN PENYIANGAN TERHADAP PERTUMBUHAN AWAL MERBAU (Intsia bijuga OK.) Tuheteru, Faisal Danu; Mansur, Irdika; Wibowo, Cahyo
Jurnal Penelitian Hutan dan Konservasi Alam Vol 8, No 3 (2011): Jurnal Penelitian Hutan dan Konservasi Alam
Publisher : Pusat Penelitian dan Pengembangan Hutan

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Abstract

ABSTRAKTeknik pembenihan langsung merupakan salah satu metode alternatif untuk mendukung reforestasi dan rehabilitasi hutan dan lahan di daerah tropika. Penelitian ini bertujuan untuk mengetahui pengaruh metode penaburan (pembenaman) benih dan gulma terhadap pertumbuhan tanaman merbau (Intsia bijuga OK.). Penelitian ini dilaksanakan di kebun percobaan Cikabayan Fakultas Pertanian Institut Pertanian Bogor  yang berlangsung mulai bulan November 2008 hingga Februari 2009. Hasil penelitian menunjukkan bahwa metode benih dibenamkan berpengaruh nyata terhadap parameter pertumbuhan tanaman. Metode benih dibenamkan dapat meningkatkan tinggi (28,44 cm), daya berkecambah (95%), laju perkecambahan (12,21 hari), persen jadi benih (89,67%) dan penyerapan unsur hara N dan P dibanding dengan metode benih ditutup mulsa. Metode benih ditutup mulsa dan tidak ada penyiangan menghasilkan berat kering akar yang rendah (0,8 g). 
Ukuran Diameter dan Takaran Vermikompos Menentukan Produksi Inokulan Fungi Mikoriza Arbuskula dan Biomassa Legum Penutup Tanah Nusantara, Abimanyu D.; Kusmana , Cecep; Mansur , Irdika; K. Darusman, Latifah; Soedarmadi, Soedarmadi
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 16, No 1 (2011): February 2011
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (214.9 KB) | DOI: 10.24002/biota.v16i1.53

Abstract

Vermikompos merupakan pupuk organik yang diproduksi dengan bantuan sistem pencernaan dan mikrob dalam usus cacing tanah. Vermikompos diketahui berpengaruh positif terhadap pertumbuhan tanaman dan perkembangan simbiosis mikoriza. Penelitian ini bertujuan mencari ukuran diameter dan bobot vermikompos yang optimal untuk menghasilkan biomasa tanaman kudzu (P. phaseoloides Roxb) dan inokulum fungi mikoriza arbuskula (FMA) G. etunicatum NPI-126. Percobaan rumah kaca dilaksanakan dengan rancangan acak kelompok dengan kombinasi ukuran diameter dan bobot vermikompos sebagai perlakuan. Hasil percobaan menunjukkan bahwa vermikompos berpotensi positif sebagai pengganti pupuk buatan untuk meningkatkan produksi biomassa tanaman kudzu dan inokulum FMA G. etunicatum NPI-126. Vermikompos dengan ukuran diameter < 250 µm bobot 150–172 mg menghasilkan bobot kering akar dan kolonisasi FMA di akar tanaman kudzu serta jumlah spora G. etunicatum tertinggi dibandingkan perlakuan lainnya. Kolonisasi FMA di akar tanaman berkorelasi positif dengan jumlah spora G. etunicatum.
FUNGI MIKORIZA ARBUSKULA PADA RIZOSFER PERICOPSIS MOONIANA (THW.) THW. DI SULAWESI TENGGARA Husna, Husna; Budi R, Sri Wilarso; Mansur, Irdika; Kusmana, Cecep; Kramadibrata, Kartini
BERITA BIOLOGI Vol 13, No 3 (2014)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v13i3.670

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The research was conducted with the aim to identify species of arbuscular mycorrhizal fungi (AMF) associated with nedum [Pericopsismooniana (Thw.) Thw.]. Soil sampling was conducted in 6 locations of nedum habitat in South-east Sulawesi. The results showed that nedum associated with 15 species of AMF that belonging to 5 families and 9 genera, Acaulosporaceae (Acaulospora scrobiculata and A. delicata), Claroideoglomeraceae (Claroideoglomus etunicatum), Glomeraceae (Glomus aggregatum, G. boreale, G. canadense, G. halonatum,G. versiforme, Rhizophagus diaphanus, R. fasciculatus, Sclerocystis clavispora and Septoglomus constrictum), Gigasporaceae (Racocetragregaria and Scutellospora auriglobosa), Ambisporaceae (Ambispora appendicula). The four species of AMF were found on nedum, i.e Glomus boreale, G. canadense, G. halonatum and Racocetra gregaria which were a new record for mycological collection of Indonesia.
Kompatibilitas Sumber Inokulan Fungi Mikoriza Arbuskular pada Kedelai dengan Budidaya Jenuh Air Muis, Ridwan; Ghulamahdi, Munif; Melati, Maya; Purwono, Purwono; Mansur, Irdika
Jurnal Penelitian Pertanian Tanaman Pangan Vol 35, No 3 (2016): Desember 2016
Publisher : Pusat Penelitian dan Pengembangan Tanaman Pangan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (168.403 KB) | DOI: 10.21082/jpptp.v35n3.2016.p229-237

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The main problem encountered by soybean crop in acid sulfate tidal lands is less availability of P, because of its chemical bond with Fe. Heavy dose of  fertilization often lead to high fertilizer residue, wich could be used for crops farming using AMF. Research was conducted to study the effect of soybean culturing technique and AMF inoculants source on growth of  soybean. The treatments consisted two factors, arranged in a randomized block design with three replications. The first factor was four inoculants sources of AMF, namely AMF and without inoculation AMF, inoculants from rhizospheres of kudzu (Pueraria javanica), sorghum (Sorghum bicolor), corn (Zea mays) and soybean (Glycine max). The second factor was culturing tehnique, namely water saturated and dry soil culture. Soybeans were grown in pots containing 5 kg soil derived from tidal land,  Simpang Village, District of Berbak, East Tanjung Jabung Regency,  Jambi Province. Results showed that the interaction saturated soil culture with inoculants from corn’s rhizosphere had positive effect on the variability of N, P and K uptake, N and P content in the plant, relative efficiency of inoculants and relative efficiency of P uptake, stem diameter, biomass dry weight, the number of filled pods and seed dry weight of soybeans. Dry soil culture with inoculants of corn’s rhizosphere had greater root colonization, but overall for the growth and grain yield of soybean, saturated soil culture with inoculants from corn rhizosphere has better effect on other growth variables.
MEKANISME KOLABORASI UNTUK PENINGKATAN KAPASITAS MASYARAKAT DALAM PROGRAM KEBUN BIBIT RAKYAT DI KABUPATEN POHUWATO Butolo, Ivana; Baga, Lukman Mohammad; Mansur, Irdika
Jurnal Manajemen Pembangunan Daerah Vol. 6 No. 1 (2014)
Publisher : Program Studi Manajemen Pembangunan Daerah. Fakultas Ekonomi dan Manajemen. IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (226.216 KB) | DOI: 10.29244/jurnal_mpd.v6i1.24646

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Kebun Bibit Rakyat (KBR) is one of government’s efforts to empower the society in order to combat degraded land through reforestation. This research aimed: 1) to identify the role of stakeholder in capacity building of the community within KBR program at Pohuwato regency. 2) to evaluate the capacity level of the community within KBR program at Pohuwato regency, 3) to formulate the collaborative strategy to the succeed of KBR program at Pohuwato regency. The datas were collected through interview, observation and questioners. The datas then were analyzed by using stakeholder analysis, gap, and SWOT. The results showed that 1) the stakeholder involved in KBR program was mostly dominated by primary stakeholder, meanwhile secondary stakeholder was not involved in KBR program even though from the identification, secondary stakeholder was concerned and influential enough towards the community capacity building within KBR program; 2) the evaluation of community capacity showed that there was gap occurred even though it was relatively small, both at the policy level, organizations and individuals; 3) based on SWOT analysis, there were some strategies that could be formulated into the programs, and they were mapped into strategic architecture portrait. Within this condition, collaboration is very important because every stakeholder would give contribution to the community capacity building.Keywords: Collaboration, stakeholders, community capacity building, Kebun Bibit Rakyat (KBR) program.ABSTRAK Program Kebun Bibit Rakyat (KBR) merupakan salah satu upaya pemerintah untuk lebih memberdayakan masyarakat dalam upaya untuk mengurangi laju kerusakan hutan dan lahan kritis. Penelitian ini bertujuan untuk 1) Mengidentifikasi peran stakeholder untuk meningkatkan kapasitas masyarakat dalam program KBR di Kabupaten Pohuwato, 2) Mengevaluasi tingkat kapasitas masyarakat dalam program KBR di Kabupaten Pohuwato, 3) Merumuskan strategi kolaborasi untuk keberhasilan program KBR di Kabupaten Pohuwato. Pengambilan data dilakukan dengan wawancara, observasi dilapangan dan kuesioner, kemudian data dianalisis dengan menggunakan analisis stakeholder, gap, dan SWOT. Hasil penelitian menunjukkan bahwa 1) Stakeholder yang terlibat dalam program KBR lebih didominasi oleh stakeholder primer, sementara stakeholder sekunder tidak dilibatkan dalam proses KBR padahal dari hasil identifikasi berkepentingan mempunyai pengaruh terhadap peningkatan kapasitas masyarakat dalam program KBR; 2) Evaluasi kapasitas masyarakat menunjukkan adanya gap yang terjadi walaupun relatif kecil, baik pada tingkat kebijakan, organisasi maupun individual; 3) berdasarkan hasil analisis SWOT diperoleh beberapa strategi yang kemudian dirumuskan kedalam beberapa program dan selanjutnya dipetakan kedalam gambar arsitekturstrategik. Dalam kondisi inilah maka kolaborasi menjadi penting karena setiap stakeholder dapat memberikan kontribusinya bagi upaya peningkatan kapasitas masyarakat.Kata Kunci: Kolaborasi, stakeholder, peningkatan kapasitas masyarakat, Program Kebun Bibit Rakyat (KBR)
STRATEGI MAKSIMALISASI ANGGARAN BELANJA PADA BALAI PENELITIAN DAN PENGEMBANGAN LINGKUNGAN HIDUP DAN KEHUTANAN MANOKWARI Hasan, Arif; Hakim, Dedi Budiman; Mansur, Irdika
Jurnal Manajemen Pembangunan Daerah Vol. 8 No. 2 (2016)
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.v8i2.24821

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This study aims to analyze causes of the low uptake of the budget and formulate a strategy of maximizing the absorption of expenditure on Balai Penelitian dan Pengembangan Lingkungan Hidup dan Kehutanan Manokwari. Respondents involved are 20 people that consist of: treasury officials and holder output of activity. The data used were secondary data in the form of reports on budget realization (LRA) quarter I, II, III and IV of the fiscal year 2011 to 2015, and the primary data were in the form of interviews with the help of a questionnaire. While the analysis of the data used was descriptive analysis using data tabulation, and the analysis of the three stages strategy of the decision making used IFE and EFE matrix, SWOT matrix and QSPM matrix.The results showed that there are 19 factors causing low of budget absorption until the end of the third quarter, and there were 10 drafts of policy as a strategy for maximizing the absorption of the budget on Balai Penelitian dan Pengembangan Lingkungan Hidup dan Kehutanan Manokwari.ABSTRAKPenelitian ini bertujuan untuk menganalisis penyebab rendahnya penyerapan anggaran belanja dan merumuskan strategi maksimalisasi penyerapan anggaran belanja pada Balai Penelitian dan Pengembangan Lingkungan Hidup dan Kehutanan Manokwari. Responden yang terlibat adalah 20 orang yaitu pejabat perbendaharaan dan pemegang output kegiatan. Data yang digunakan adalah data sekunder berupa laporan realisasi anggaran (LRA) triwulan I, II, III dan IV tahun anggaran 2011 sampai 2015, dan data primer berupa wawancara dengan bantuan kuesioner. Sedangkan analisis data yang digunakan adalah analisis deskriptif menggunakan analisis tabulasi, dan analisis analisis strategi tiga tahap pengambilan keputusan menggunakan matriks IFE dan EFE, matriks SWOT dan matriks QSPM. Hasil penelitian menunjukkan bahwa terdapat 19 faktor penyebab rendahnya penyerapan anggaran belanja sampai akhir triwulan III, dan terdapat 10 rancangan kebijakan sebagai strategi maksimalisasi penyerapan anggaran belanja di Balai Penelitian dan Pengembangan Lingkungan Hidup dan Kehutanan Manokwari.
Morphological Characteristics of Ectomycorrhizas on Merbau [Intsia bijuga (Colebr.) O. Kuntze] JULIUS DWI NUGROHO; IRDIKA MANSUR; AGUS PURWITO; ENDANG SUHENDANG
HAYATI Journal of Biosciences Vol. 17 No. 2 (2010): June 2010
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (144.072 KB) | DOI: 10.4308/hjb.17.2.68

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Merbau [Intsia bijuga (Colebr.) O. Kuntze] is one of valuable timber tree in south-east Asia which has been known having ectomycorrhizae (EcM) though being ignored. Identification of the ectomycorrizae is prime important for being basis of further studies. This study investigated the EcM fungi associated with Merbau by using both sporocarp morphology and EcM morphotypes. Morphological characters of sporocarps and basidiocarps of the fungi and EcM morphotypes obtained from seedlings and trees from natural and plantation stands of merbau, as well as from nurseries were compared to the description of those resulted from baiting method. Only one species of ectomycorrhizal fungus was found associated with merbau [Intsia bijuga (Colebr.) Kuntze] which has not been described yet. The fungus formed mycorrhizae with monopodial pinnate branching. The fungus was identified belonging to the genus of Scleroderma. The fungus was more common to occur beneath merbau seedlings than trees. The sporocarps may be yielded under greenhouse condition and could be cultured in MMN agar media, thus it facilitates to the production of inoculums used for further studies.
Studi Intensitas Cahaya Dan Cendawan Mikoriza Arbuskula Pada Permudaan Alam Ramin (Gonystylus Bancanus (Miq.) Kurz) (Study on Arbuscular Mycorrhizal Fungi and Light Intensity to the Natural Regeneration of Ramin (Gonystylus bancanus (Miq.) Kurz)) Abdurrani Muin; Yadi Setiadi; Sri Wilarso Budi; Irdika Mansur; Endang Suhendang; Supiandi Sabiham
Jurnal Manajemen Hutan Tropika Vol. 12 No. 3 (2006)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

The objective of this research is to find out the early information of optimum light intensity and highest mycorrhizal colonization on natural Ramin seedling which it includes in semitolerant plant. The research was conducted in Ramin Natural Forest of Sungai Pelunjung Labai, Sanggau District, West Kalimantan for a year. The results of the research show that there are correlations between light intensity with mycorrhizal colonization. Ramin seedling which grown under the light intensity 3190 – 9500 lux have high mycorrhizal colonization and their growth better than the other treatment. Meanwhile Ramin seedling which grown in closed area or in open area with light intensity less than 1670 lux and more than 10840 lux respectively have lower mycorrhizal colonization and their growth was lower.Key words: Ramón seedling  (G. bancnus), Light intensity and Mycorrhizal Fungi
Institutional Performance of Mining Reclamation in Forest Areas of East Kalimantan Rina Kristanti; Hariadi Kartodihardjo; Bramasto Nugroho; Irdika Mansur
Jurnal Manajemen Hutan Tropika Vol. 25 No. 2 (2019)
Publisher : Institut Pertanian Bogor (IPB University)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (869.373 KB) | DOI: 10.7226/jtfm.25.2.69

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The Indonesian Government accommodates the development of mining sector conducted in forest area based on Forestry Law Number 41/1999 by the scheme of Forest Leasehold License. Reclamation is required to remediate the degraded land caused by mining activity to restore forest structure and function. This study aimed to analyze the implementation of mining reclamation in East Kalimantan forest areas based on its institutional performance. This study is a descriptive qualitative study that implemented the institutional framework of Situation-Structure-Behavior-Performance. From the study, we found that there are 143,804.89 ha of forest area borrowed by 90 units of Forest Leasehold License for coal and mineral mining in East Kalimantan with reclamation progress reached 41.35% over the disturbed areas. Based on institutional performance analysis, it is identified that the challenges in mining reclamation in East Kalimantan forest areas related to regulation, low sanction enforcement, lack of budget, human resource and economic incentives, and the absence of low-cost technology for mining reclamation monitoring and evaluation. Therefore, development of proper regulations is urgently required to improve stakeholder behavior while enhancement of human resource, technology, and law enforcement are also urgent to improve institutional performance of mining reclamation.Keywords: 
Co-Authors , Amisnaipa . Wahyudi AA Sudharmawan, AA Abdonia W. Finmeta Abdurrani Muin ABIMANYU D. NUSANTARA 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 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 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 . 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 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 Zuhriansah, Alfi Laila