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All Journal IJOG : Indonesian Journal on Geoscience Jurnal technoscientia Jurnal RISET Geologi dan Pertambangan Seminar Nasional Teknik Kimia Kejuangan Journal of Degraded and Mining Lands Management Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir Jurnal Pengabdian Kepada Masyarakat (Indonesian Journal of Community Engagement) Jurnal Ilmiah Dinamika Rekayasa (DINAREK) UNEJ e-Proceeding Journal of Geoscience, Engineering, Environment, and Technology Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) Jurnal Geomine Indonesian Mining Journal PROMINE Buletin Sumber Daya Geologi Jurnal GEOSAPTA International Journal of Community Service Learning TEKNOLOGIA Al-Ard: Jurnal Teknik Lingkungan KURVATEK Jurnal Abdi: Media Pengabdian Kepada Masyarakat Prosiding Seminar Teknologi Kebumian dan Kelautan (SEMITAN JURNAL TEKNOLOGI TECHNOSCIENTIA Indonesian Journal on Geoscience Indonesian Journal on Geoscience Journal of Applied Geology SRIWIJAYA JOURNAL OF ENVIRONMENT Ophiolite : Jurnal Geologi Terapan Jurnal Locus Penelitian dan Pengabdian International Journal of Hydrological and Environmental for Sustainability INTAN Jurnal Penelitian Tambang Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII Jurnal Ilmiah Geologi pangea Jurnal Ilmiah Geomatika Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) Asian Journal of Social and Humanities Indonesian Mining Journal Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir

Arifudin Idrus

Departemen Teknik Geologi Fakultas Teknik Universitas Gadjah Mada

Author-ID : 285193

Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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GEOLOGY AND CHARACTERISTICS OF LOW SULPHIDATION EPITHERMAL VEIN IN SENEPO AREA, EAST JAVA Arifudin Idrus; Esti Handayani
Indonesian Mining Journal Vol 20 No 2 (2017): INDONESIAN MINING JOURNAL VOL. 20 NO. 2 October 2017
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol20.No2.2017.274

Senepo area is one of several epithermal mineralization prospects in Southern Mountains of Java Island. This study is aimed to investigate the geological framework and hydrothermal alteration of the prospect as well as to characterize the low sulphidation (LS) epithermal vein including vein textures, ore mineral, ore chemistry and hydrothermal fluid that are responsible for the formation of the quartz vein. Detailed field mapping was completed to understand the geological framework and hydrothermal alteration zones. Petrographic, ore microscopic, XRD and AAS analyses were applied to characterize the quartz vein. The study area is occupied by pebbly sandstone, andesite breccia, andesite units and alluvial deposit. Ore mineralization is mainly hosted by andesite of Oligo-Miocene of Watupatok Formation. The host-rock has been suffered by overprinted hydrothermal alteration and weathering. The epithermal veins are found as N-S-trending quartz veins with a thickness of 1-2 meters. These veins show massive texture, crustiform, cockade, druzy, comb, and disseminated sulphides, which is included in Crystalline Quartz Zonation (X). Optical microscopy and XRD analysis indicate that these veins contain several ore minerals such as chalcopyrite, sphalerite, galena, pyrite, hematite, covellite and malachite, associated with gangue mineral including quartz, felspar, chlorite and clay minerals. AAS analysis displays variable chemical composition of precious and base metals such as Au (17-37 ppb), Ag (8.1-32.6 ppm), Cu (122.1-81,450 ppm), Pb (35.4-883.6 ppm) and Zn (18.3-2,628 ppm). Gold and silver are relatively low compared to the base metals. Fluid inclusion micro thermometric analysis indicates that ore mineralization originated at temperatures of 187-263 oC and salinity of 0.18-0.53 % wt. NaCl eq. This salinity corresponds with a minimum hydrostatic pressure of about 10-55.1 bars. Based on those characteristic data, mineralized quartz veins in the study area are classified into a base metal horizon of LS epithermal system.

FUZZY LOGIC APPROACH FOR POST-MINING LAND USE PLANNING: A CASE STUDY ON COAL MINE OF PT. ADARO INDONESIA-SOUTH KALIMANTAN Mohamad Anis; Arifudin Idrus; Hendra Amijaya; Subagyo Subagyo
Indonesian Mining Journal Vol 20 No 2 (2017): INDONESIAN MINING JOURNAL VOL. 20 NO. 2 October 2017
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol20.No2.2017.371

Currently coal companies, especially in South Kalimantan, have not yet been or only slightly entered the post-mining stage, although part of the mining blocks have been totally exploited, so that the company should have been preparing for the development of other sectors (non-mining). It shows that optimization of coal resources from exploration, mining to post-mining land use is necessary to ensure sustainable mining and sustainable development in terms of meeting the conservation aspect. To meet all aspects of conservation, the achievement of optimization in a series of mining business activities is started from the potential optimization of the coal remain resources until the optimization of post-mining land use is absolutely required. This research has analyzed several alternative sectors outside mining, which will be selected for optimization of utilization or post-mining land use, including plantation, recreation, industry and conservation sectors. The analyzing process used several parameters to assess the selected sectors including rainfall, slope and land use. Therefore, this study uses an approach of GIS-based methods (knowledge-driven), mainly fuzzy logic for post-mining land use planning. The selected mining area for this study belongs to PT. Adaro Indonesia company that has a Work Agreement for Coal Mining Exploitation. The result shows the suitability of plantation for the optimization of land use in all mining sites and also for conservation areas or protected forests.

LITHOGEOCHEMICAL EXPLORATION FOR DELINEATING PRIMARY GOLD OCCURRENCES IN WEST KAO AREA, NORTH HALMAHERA DISTRICT, NORTH MALUKU PROVINCE Arifudin Idrus; Fadlin Fadlin
Indonesian Mining Journal Vol 24 No 1 (2021): INDONESIAN MINING JOURNAL, Vol. 24 No. 1, April 2021
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol24.No1.2021.1173

Halmahera Island retains several gold deposits. One of the gold deposits is called as low sulphidation epithermal (LSE) quartz veins which is currently being mined and is situated in the Gosowong goldfield. The veins mostly originated in N-S and NNE-SSW direction. This study is aimed to determine the prospect area in the northern portion of Gosowong goldfield covering the West Kao sub district based on surface mapping and rock/float- and BLEG stream sediment survey. A total of 16 rock/vein float and 120 BLEG samples were analyzed by FA/AAS and CNO2 cyanide leach methods, respectively. The study area is occupied by tuffaceous sandstone, andesite, porphyritic andesite and lava andesite units. In the eastern part, tuffaceous sandstone is suffered from argillic and propylitic alteration, which may be controlled by the NW-SE-trending structures. The gold grade of rock/float samples is up to 0.044 ppm. BLEG data indicates a calculated threshold of 10 ppb for Au and 72 ppb for Ag. The highest Au and Ag contents (anomalies) are identified in the eastern part of the study area. This is spatially (and maybe genetically) related to the argillic-altered tuffaceous sandstone, structures and occurrences of quartz vein floats. To follow up this finding, a detailed exploration is recommended to be conducted within the prospect area.

Study of Element Abundance in Volcanic Rocks in the Beruang Kanan Region, Gunung Mas Regency, Central Kalimantan Retno Anjarwati; Sutarto Sutarto; Dwi Fitri Yudiantoro; Arifudin Idrus
Asian Journal of Social and Humanities Vol. 2 No. 10 (2024): Asian Journal of Social and Humanities
Publisher : Pelopor Publikasi Akademika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59888/ajosh.v2i10.356

Soil elements, based on their abundance in the earth's crust and petrogenetic analysis aim to divide soil elements into several groups, namely major elements, trace elements and rare earth elements (REE). The research location is located in the Beruang Kanan area, Tumbang Miri District, Gunung Mas Regency, Central Kalimantan Province. The major elements and trace elements of the host rock were obtained from X-ray fluorescence (XRF) analysis and Plasma-Coupled Mass Spectrometry (ICP-MS) methods. Volcanic rocks from the Kanan Bear prospect The volcanic magmatic affinity in the study area is calc-alkaline this chemical characteristic is clearly reflected by the type of volcanic rock which is determined based on its chemical classification, which is generally igneous rock of the calc-alkaline magma series type so it is interpreted to originate from a convergent tectonic environment continental edge.

Magma Petrogenesis Study Based on Morphology and Texture Of Zircon Minerals: Case Study At The Causative Intrusive In The HLE Porphyry Copper-Gold Prospect, Sumbawa Island, Indonesia Fadlin; Sulistyawan, Raden Isnu Hajar; Idrus, Arifudin; Asfaro, Raden Muhammad; Nhatinombe, Hernani Vitorino; Hamzah, Wildan Nur
Journal of Geoscience, Engineering, Environment, and Technology Vol. 9 No. 2 (2024): JGEET Vol 09 No 02 : June (2024)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2024.9.2.13248

The zircon mineral is one of the accessory minerals within igneous rocks for its ability to resist hydrothermal and metamorphic processes. By examining their morphology and texture, zircon minerals can provide valuable insights into magma's petrogenesis, including temperature and composition. Two methods used to reach the research objectives include Petrography and SEM-CL analysis of the zircon grain from the diorite porphyry of the HLE prospect. On the basis of Petrography observation, the grain size of zircon ranges from 50 to 300 µm in size, and most have a transparent to grey color with prismatic, non-prismatic euhedral-subhedral elliptical, and non-prismatic rounded in shape. The zircon crystal typologies from the diorite porphyry are classified into S10, P2, S12, S13, S16, and S17 types, indicating the wide range of the crystallization temperature of zircon, ranging from 700 to 800 °C. The zircon from the diorite porphyry of the HLE prospect shows the medium values of pyramids typology, which is {101} = {211}. It corresponds to a medium Al/Na + K ratio (A index) value, indicating zircon as a product from the calc-alkaline magmas series. The trend of the calc-alkaline/sub-alkaline in typology suggests crustal sources mixed with mantle material. Furthermore, based on SEM-CL analysis the zircon shows dominantly oscillatory zoning with thin bands, and some grains show weak zoning in the outer core, typical of magmatic zircon. Moreover, the presence of lamellae texture of magnetite-ilmenite mineral under the scanning electron microscopy (BSE image) can be interpreted as the magma related to the high oxidizing magma.

Sintesis Copper-Nanoparticles dari Limbah Leaching Kalkopirit Sebagai Zat Antibakteri dengan Metode Reduksi Wibowo, Decka Pynka; Kusumastuti, Yuni; Prasetya, Agus; Asih, Yekti; Petrus, Himawan T.B.M; Idrus, Arifudin
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2023: PROSIDING SNTKK 2023
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

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

Nanoparticle technology has been widely used in various industries because of its advantages in particle size control systems. One example of the use of nanoparticle technology is copper nanoparticles as an antibacterial material. This research focuses on the utilization of leaching waste as a material for the synthesis of copper nanoparticles. The synthesis of copper nanoparticles was carried out by chemical reduction method between chalcopyrite stone leaching waste namely CuSO4 as precursor, Cetyl Trimethyl Ammonium Bromide (CTAB) as surfactant and NaBH4 reducing agent. The synthesized material will be analyzed using UV-Vis spectroscopy. Furthermore, the particle size will be estimated using PSA and its antibacterial properties will be analyzed using the well diffusion method by looking at the effectiveness of the inhibitory power against Escherichia coli FNCC 0049 and Staphylococcus bacteria aureus FNCC 0047. The results of the synthesis obtained the smallest size of 235.7 nm from the ratio of precursor concentration, reducing agent concentration and, a surfactant concentration of 1:20:8. The results of the synthesis of copper nanoparticles with concentrations of 10.000 ppm showed the presence of inhibitory power to overcome Escherichia coli FNCC 0049 and Staphylococcus bacteria aureus FNCC 0047.

Studi Recovery Tembaga pada Proses Froth Flotation dari Bijih Tembaga Papua, Indonesia dengan Variasi pH dan Konsentrasi Kolektor Heimbach, Ivano; Petrus, Himawan Tri Bayu Murti; Prasetya, Agus; Idrus, Arifudin; Timotius, Daniel; Kusumastuti, Yuni; Sutijan, Sutijan
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2023: PROSIDING SNTKK 2023
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

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In the process of flotation of copper-bearing ore, several factors such as the concentration of the collector used and the pH of the fluid used can have an impact. In this study, observations were made on the influence of collector concentration and pH on the recovery of copper ores from Papua, Indonesia. The ore samples were obtained from three different site. Preparation of samples were conducted by crushing and sieving to obtain solid particles with a size of +200 mesh. The fine particles then fed into froth flotation device. Froth flotation operations were carried out at different operating condition namely pH (pH 3, pH 6, and pH 9), xanthate concentration (1300, 2000, and 2600 ppm), and time (3, 5, 7, and 14 minutes). The froth and tailings were collected separately and dried in an oven at 60oC. The feed, froth, and tailings were then subjected to EDX analysis to determine their compositions. The results of the experiment showed that higher collector concentrations did not necessarily lead to increased copper recovery. The appropriate pH conditions, however, could optimize copper recovery. The optimum conditions obtained from this experiment were xanthate concentration of 2000 ppm, pH of 3, and the ore sample 2

Lithogeochemical characteristics and potential hyperaccumulator identification as phytomining agent at the Ratatotok gold mine, Indonesia Aminatun, Tien; Idrus, Arifudin; Simbolon, Doly; Rakhmawati, Anna; Atun, Sri
Journal of Degraded and Mining Lands Management Vol. 11 No. 2 (2024)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2024.112.5251

In the future, phytomining will be an environmentally friendly alternative mining technology. Therefore, the exploration of vegetation types having the potential as hyperaccumulators in gold phytomining needs to be carried out. This study aimed to (1) investigate the effect of rock/soil mineralogy characteristics and Au content on the diversity of vegetation types at gold mine sites, and (2) determine the type of potential hyperaccumulator vegetation as a phytomining agent based on the Biological Concentration Factor (BCF). This study was conducted at the Ratatotok gold mine in North Sulawesi Province, Indonesia. The sampling locations consisted of 3 sites, i.e., Bulex, Yance, and Leon, and each site consisted of 5 sampling plots. Soil samples were taken from each sampling plot and then tested for gold content using the ICP-MS method and mineral content using the XRD method. Mineralized bedrock samples were also taken for mineralogical analysis through petrography. Data analysis of soil geochemistry was carried out descriptively. Quantitative descriptive analysis was also carried out to determine the dominant type of vegetation, which was potential for hyperaccumulators at the mine site. The results showed that gold content in the soil affected the diversity of vegetation, which was possibly due to gold stress, which affected plant growth. Based on the BCF value, three local plant species having potential as gold hyperaccumulators with moderate bioaccumulation ability (BCF>0.1-1) were found, namely Pteris vittata, Syzygium aromaticum, and Swietenia mahagoni. However, the use of these plants as phytomining agents requires further research.

Identifikasi Zona Mineralisasi Dan Struktur Pengontrol Skarn Cu Daerah Sulit Air, Kabupaten Solok, Provinsi Sumatera Barat Afrilita, Afrilita; Idrus, Arifudin; Pambudi, Setia; Pratomo, Septyo Uji
Jurnal Ilmiah Geomatika Vol 2, No 2 (2022): Oktober Jurnal Ilmiah Geomatika
Publisher : Program Studi Teknik Geomatika Fakultas Teknologi Mineral Universitas Pembangunan Nasional

Endapan skarn merupakan salah satu dari beberapa endapanhidrotermal yang menghasilkan endapan bijih yang bernilai ekonomis. Mineralisasi skarn Cu pada daerah Sulit Air sudah diketahui sejak lama, namun belum banyak penelitian rinci yang membahas tentang kontrol struktur geologi terhadap penyebaran alterasi dan mineralisasi di daerah ini. Penelitian ini membahas tentang identifikasi zona mineralisasi dan kontrol struktur geologi terhadap pola penyebaran alterasi dan mineralisasi skarn Cu. Metodologi yang digunakan yaitu analisis citra DEM dan pemetaan geologi permukaan. Zona alterasi skarn Cu terbagi kedalam empat zonasi yaitu zona piroksen-K-feldspar-klorit-epidot, zona garnet-piroksen, zona piroksen-kuarsa, dan zona garnet-wollastonit-piroksen. Mineralisasi dominan hadir pada zona alterasi garnet-wollastonit-piroksen dan zona garnet-piroksen. Mineral utama pembawa Cu berupa bornit, kalkosit, malakit, azurit dan kalkopirit. Penyebaran alterasi mengikuti pola intrusi dan sesar-sesar mendatar lokal. Zona alterasi ini mengikuti sesar mendatar kiri yang berarah utara-selatan (N-S) sedangkan zona mineralisasi mengisi rekahan-rekahan pada zona sesar mendatar kiri yang berarah utara-selatan (N-S) dan barat laut-tenggara (NW-SE). Kekar pada zona sesar terisi oleh mineral-mineral kalsit, kuarsa dan azurit yang dominan berarah berarah barat laut-tenggara dan timur laut-barat daya.

Mineralogy and Ore Characteristics of the Kujang Pb-Zn Skarn Deposit, Sukabumi Regency, West Java Suryawan, Eka Harris; Idrus, Arifudin; Suyanto, Imam; Ilmawan, Ilham; Faruqi, M.Dzulfikar
Journal of Applied Geology Vol 8, No 2 (2023)
Publisher : Geological Engineering Department Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jag.78105

The Kujang Pb-Zn skarn deposit is known to be the newest skarn deposit found in the Sunda-Banda magmatic arc. The skarn orebodies are mostly hosted by limestone which might be the part of the Jampang Formation where dacite porphyry is interpreted to be the ore causative intrusion. Orebodies are mostly found at the contact between marbleized limestone and volcanic rocks and are controlled by NW-SE-trending strike-slip faults. Previous research on the mineralogy and ore characteristics of the Kujang Prospect remains limited on the preliminary studies. Using fieldwork data, petrography, ore microscopy, and assay data from core samples, this study is aimed to characterize the mineralogy of both alteration and ore of the deposit. The alteration of the Kujang Prospect skarn can be divided into 2 phases of alteration i.e. prograde and retrograde. The prograde alteration is characterized by the occurrence of clinopyroxene, wollastonite, and vesuvianite. Garnet is present in very rare amounts. the retrograde alteration is typified by epidote, chlorite, calcite and actinolite. Metalliferous minerals are represented by sphalerite, galena, pyrrhotite, chalcopyrite and pyrite. All ore minerals are formed at the early retrograde stage. the deposit’s average grade is 2.06% Pb, 6.45% Zn and 1.81% Cu.

Co-Authors A. Harijoko A. Harijoko A. Imai A. Imai A. M. Imran Abdul Abdul Abdul, Abdul Abrar, Miftahul Afrilita, Afrilita Agung Harijoko Agung Harjoko Agus Prasetya Ahmad Ahmad Ahmad Ahmad Akira Imai Alyna Azarine Aminatun, Tien Anastasia Dewi Titisari Anjarwati, Retno Anna Rakhmawati Araki, Naoto Arfan Siregar Asfaro, Raden Muhammad Asih, Yekti Asrafil Asrafil Ati, E. M. Atmoko, Didik Dwi Atmoko, Didik Dwi Bambang Priadi Cendi D. P. Dana Chun-Kit Lai Dana, Cendi D. P. Danny, Rama Danny, Rama Dian Yesy Fatimah Didik Dwi Atmoko Didik Dwi Atmoko Djoko Wintolo Djoko Wintolo Djoko Wintolo, Djoko Donatus Hendra Amijaya Dwi Fitri Yudiantoro E. M. Ati E. M. Ati Eddy Winarno Edy Nursanto Edy Nursanto Edy Nursanto Ernowo Ernowo Ernowo Ernowo Ernowo Harjanto Ernowo Harjanto, Ernowo Ernowo, Ernowo Esti Handayani Esti Handayani F. M. Meyer F. M. Meyer F. Thamba F. Thamba Fadlin Fadlin Fadlin Fadlin Fadlin Fadlin Idrus Fadlin, Fadlin Faesal, Andi Faruqi, M.Dzulfikar Feddy Yurniadi Fenny Tamba Ferian Anggara Franklin Franklin Franklin Franklin Franklin, Franklin Franz M Meyer Franz Michael Meyer Franz Michael Meyer Franz Michael Meyer, Franz Michael Godang, Shaban Godang, Shaban Hakim, Fahmi Hakim, Fahmi Hamzah, Wildan Nur Handayani, Esti Harijoko, A. Harjoko, Agung Harjoko, Agung Hasria Hasria Hasria Hasria Hasria Hasria, Hasria Heimbach, Ivano Herfien Samalehu Herfien Samalehu Hermansyah, Wahyu Hidayatullah Hidayatullah Hill Gendoet Hartono Himawan Tri Bayu Murti Petrus Hinode, Hirofumi HTBM Petrus I Gde Sukadana I Gde Sukadana I Gede Budi Irawan Budi Irawan I Wayan Warmada I. Nur I. Nur I. Nur Idrus, Fadlin Ignas A. Meak Ilmawan, Ilham Imai, A. Imai, Akira Imam Suyanto Indra Sanjaya Indra Sanjaya Irwan Endrayanto, Irwan Irzal Nur Irzal Nur, Irzal Isyqi Isyqi Iwan Setiawan Iwan Setiawan Iwan Setiawan Iwan Setiawan Jochen Kolb Johan Arif Johan Arif, Johan Kaharuddin Kaharuddin Kaharuddin, Kaharuddin Kant, Win Khant, Win Koichiro Watanabe Koichiro Watanabe Koichiro Watanabe, Koichiro Kolb, Jochen Kotaro Yonezu Kris Ramlan Kurniawan, Winarto L. D. Setijadji L. D. Setijadji Lai, Chun-Kit Leeuwen, Theo Van Lia Novelia Agung Lia Novelia Agung, Lia Novelia Lucas D Setijadji Lucas Donny Setijadji Mansur, Suaib May Thwee Aye Meak, Ignas A. Mersi Abadi Meyer, F. M. Meyer, Franz M Meyer, Franz M Mochammad Aziz Mochammad Aziz Mochammad Aziz, Mochammad Moetamar Moetamar Moetamar Moetamar Moetamar, Moetamar Mohamad Anis Mohamad Anis Mohamad Anis Mohamad Anis Mohamad Anis, Mohamad Mudinillah, Adam Muhammad Arba Azzaman Muhammad Muhsin Al Hakim Myaing, Yu Yu Myo Min Tun Myo Min Tun Naoto Araki Nhatinombe, Hernani Vitorino Nugroho Imam Setiawan Nur, I. Nur, I. Nurkhamim Nurkhamim Nurkhamim Nurkhamim Nurkhamim Okki Verdiansyah Okki Verdiansyah Okki Verdiansyah Okki Verdiansyah Pambudi, Setia Por, Vannak Pramumijoyo, Pranayoga Pramumijoyo, S. Pranayoga Pramumijoyo Prasetyawati Umar, Emi Prastistho, Widyawanto Pratiwi, Fadiah Pratomo, Septyo Uji Priadi, Bambang Prihatmoko, Sukmandaru Putranto, Sapto Putranto, Sapto Putranto, Sapto Raden Isnu Hajar Sulistyawan, Raden Isnu Hajar Rahmah, Yuyun Prihatining Rahmayuddin Rahmayuddin Rahmayuddin, Rahmayuddin Rama Danny Rangga Bintang Ardaraja Rangga Bintang Ardaraja Resurrection, Augustus C. Retno Anjarwati Retno Anjarwati Rika Ernawati Rika Ernawati Riyadi, Hasan Rizal, Khairu Rohaya Langkoke Rohaya Langkoke S. Pramumijoyo S. Pramumijoyo Samalehu, Herfien Sapto Putranto Sapto Putranto Satriadi Abdullah Satriadi Satriadi SATRIYAS ILYAS Setia Pambudi Setiawan, Iwan Setiawan, Iwan Setijadji, L. D. Setijadji, Lucas D Setijadji, Lucas D Shaban Godang Shaban Godang Simbolon, Doly Sindern, Sven Siti Rahmawati H. Budiawan SRI ATUN Suaib Mansur Subagyo Pramumijoyo Subagyo Pramumijoyo Subagyo Pramumijoyo Subagyo Pramumijoyo, Subagyo Subagyo Subagyo Subagyo Subagyo Subagyo Subagyo Subagyo Subagyo Sufriadin, Sufriadin Sujangka, Arsyad Sukadana, I Gde Sukamandaru Prihatmoko Sukamandaru Prihatmoko, Sukamandaru Sukmandaru Prihatmoko Sukmandaru Prihatmoko Supit, Jance Mudjani Suryawan, Eka Harris Sutarto Sutarto Sutarto Sutarto Sutarto Sutarto Sutarto Sutarto Sutarto Sutarto Sutijan Sven Sindern Syafruddin Maula Syafruddin Maula Takahashi, Ran Takahashi, Ryohei Tamba, Fenny Thamba, F. Theo Van Leeuwen Theresia Fernandha Samuels Thwee Aye, May Timotius, Daniel Tun, Myo Min Ubaidillah, Aji Syailendra Wahyu Widodo Wahyu Widodo Waterman Sulistyana Bargawa Wawan Budianta Wibowo, Decka Pynka Win Kant Win Khant Wiwit Suryanto Yonezu, Kotaro Yu Yu Myaing Yuni Kusumastuti, Yuni Yurniadi, Feddy Yuyun Prihatining Rahmah

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