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All Journal Bulletin of Scientific Contribution : Geology Indonesian Journal of Applied Sciences IJOG : Indonesian Journal on Geoscience Jurnal RISET Geologi dan Pertambangan Journal of Engineering and Technological Sciences Jurnal Teknologi Mineral dan Batubara Journal of Geoscience, Engineering, Environment, and Technology Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) JLBG (Jurnal Lingkungan dan Bencana Geologi) (Journal of Environment and Geological Hazards) BULLETIN OF THE MARINE GEOLOGY Indonesian Mining Journal Buletin Sumber Daya Geologi JURNAL METEOROLOGI DAN GEOFISIKA Jurnal Geologi Kelautan: Media Hasil Penelitian Geologi Kelautan KURVATEK Indonesian Journal on Geoscience Indonesian Journal on Geoscience Jurnal Locus Penelitian dan Pengabdian Berita Sedimentologi Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources) Jurnal Teknologi Mineral dan Batubara Journal of Geosciences and Applied Geology Jurnal Meteorologi dan Geofisika Indonesian Mining Journal
Ildrem Syafri
Fakultas Teknik Geologi, Universitas Padjadjaran
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Mathematics Physics Social Sciences

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PENINGKATAN MUTU BIJIH BAUKSIT TAYAN MENGGUNAKAN PEMISAH MAGNETIK Stefanus Suryo Cahyono; Ildrem Syafri; Johanes Hutabarat
Jurnal Teknologi Mineral dan Batubara Vol 15 No 1 (2019): Jurnal Teknologi Mineral dan Batubara Edisi Januari 2019
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol15.No1.2019.948

Abstract

Sumberdaya bauksit yang ada di Tayan, Kalimantan Barat belum dimanfaatkan secara optimal dan perlu dilakukan peningkatan nilai tambah bauksit melalui proses pencucian dan pengolahan, sehingga perlu dilakukan pengkajian peningkatan mutu bijih bauksit. Percontoh bijih bauksit yang diambil dari daerah Tayan memiliki kadar SiO2 total 11,55%, Al2O3 43,64%, Fe2O3 9,63%. Proses peningkatan mutu (upgrading) bijih bauksit bertujuan untuk menaikkan kadar bauksit agar memenuhi persyaratan alumina di atas 51% Al2O3, maksimum 3% SiO2 dan maksimum 7 % Fe2O3 untuk bahan baku alumina. Tahapan proses scrubbing meliputi pemercontohan, scrubbing, pengayakan, pengeringan, penimbangan, penggerusan, pemisah magnetik dan analisis kimia. Parameter mutu yang digunakan untuk menilai keberhasilan adalah persen kumulatif ukuran butiran +2 mm (+10 mesh), perolehan Al2O3, kadar SiO2 total, Al2O3, dan Fe2O3. Uji coba proses pencucian-magnetik separator ini telah memberikan hasil yang baik ditinjau dari peningkatan kadar Al2O3 dan perolehan Al2O3. Kadar Al2O3hasil uji coba berkisar antara 57,29-59,78% dengan perolehan berkisar 69,67-85,58%. Bauksit tercuci-magnetik separator yang dihasilkan telah meningkatkan mutu bijih bauksit sebagai bahan baku pembuatan alumina melalui proses Bayer. 
PENGARUH TEMPERATUR DAN UKURAN BUTIR TERHADAP KELARUTAN KALIUM PADA BATUAN LEUSITIK GUNUNG MURIA JAWA TENGAH Budhy Agung; Ildrem Syafri; Agus Didit Haryanto
Jurnal Teknologi Mineral dan Batubara Vol 15 No 2 (2019): Jurnal Teknologi Mineral dan Batubara Edisi Mei 2019
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/jtmb.Vol15.No2.2019.1002

Abstract

Mineral yang berpotensi di bidang pertanian sebagai sumber unsur hara (pupuk) yang dibutuhkan tanaman adalah dolomit, batuan fosfat, dan mineral silikat seperti leusit, muskovit dan ortoklas. Leusit mengandung kalium dan aluminium tektosilikat K(AlSi2O6). Mineral ini dijumpai di Kabupaten Jepara, Pati dan Kudus. Di Medani, Jepara potensinya sebanyak 190.400.000 ton, kandungan K2O antara 1,92-8,77 %. Mineral leusit untuk penelitian ini mempunyai kadar K20 antara 7,68-7,98 %; Al2O3 19,62-20,73 % dan SiO2 48,62-49,93 %. Hasil analisis petrografi menunjukkan adanya fenokris yang terdiri dari leusit, sanidin dan mineral opak. Unsur kalium di dalam leusit sulit larut, sehingga perlu diupayakan peningkatan kelarutannya dengan cara memanaskan batuan mengandung leusit tersebut pada suhu 600-1000 °C dan penghalusan ukuran butiran dari -70 sampai -200 mesh. Sebagai pembanding digunakan percontoh tanpa pemanasan. Dari hasil uji coba, kelarutan tanpa pemanasan relatif rendah antara 0,22-0,49 %; semakin halus butiran kelarutan leusit cenderung semakin meningkat, tetapi pada suhu 600 °C terjadi peningkatan cukup signifikan antara 1,55-2,30 %, pada suhu 700 °C kelarutan relatif tetap yaitu antara 1,44-2,40 %, sedangkan pada suhu 850 °C mulai terjadi penurunan kelarutan menjadi 1,20-1,95 % dan pada suhu lebih tinggi 1000 °C, kelarutan menurun menjadi 0,31-0,45 %. Percobaan peningkatan kelarutan kalium cukup signifikan sampai 10 kali, diharapkan kegunaan untuk pupuk lebih baik.
SUBSIDENCE AND HEAT PROPAGATION MODELING ON THE UNDERGROUND COAL GASIFICATION (CASE STUDY AT MUARA ENIM FORMATION, SOUTH SUMATERA) Zulfahmi Zulfahmi; Ildrem Syafri; Abdurrokhim Abdurrokhim; Ridho Kresna Wattimena
Indonesian Mining Journal Vol 23 No 2 (2020): INDONESIAN MINING JOURNAL, Vol. 23 No. 2, October 2020
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol23.No2.2020.1132

Abstract

One of the important issues to study underground coal gasification (UCG) is the prediction of surface subsidence. Several parameters that influence these conditions are the thickness of cap rock, the physical and mechanical characteristics, the structure condition, the minerals composition of the rock, and external conditions. This study had been carried out simulation and modeling to determine the level of surface subsidence risk and the effect of high temperatures due to the activities. The modeling results show that the thickness of the rock above the UCG coal seam greatly affects the surface subsidence. The depth is more than 200 m and found that the SF value is 1.59 which indicates UCG reactor depth of ≥ 200 m is safe from the risk of subsidence. From the characteristic aspect of the cap rock, the claystone types which not contain kaolinite minerals are more prone to collapse than those of contain kaolinite minerals. From this models, the gasifier at 150 m depth was estimated that there will be a decline of -7.23 m, and the minimum subsidence is at 275 m about 0.1 m. The heat propagation modeling results show that at 50 m the temperature is estimated to be 213- 289°C, but if the thickness of the cap rock is > 200 m depth, the temperature is around 29-28°C.
Eocene – Late Miocene Tectonostratigraphy of Bima Field in Northwest Java Basin Natasia, Nanda; Alfadli, Muhammad Kurniawan; Syafri, Ildrem
Journal of Geological Sciences and Applied Geology Vol 2, No 3 (2017): Journal of Geological Sciences and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v2i3.15619

Abstract

This study aim to understand the tectonostratigraphy of Bima Field from Basement forming in Eocene to Late Miocene Interval based on seismic observation. Regional structural analysis of the Bima Field and surrounding area was conducted using integration 2D seismic lines and existing wells. The main purpose of the analysis is to describe structural pattern and style in the study area in relation to regional tectonic of the North-West Java Basinal area. The results of structural mapping using regional 2D seismic data controlled by numbers of wells indicates study area is mostly located along NNE-NSW trending basement high structures (Figure 3). Structural development of the study area is dominated by series of normal faults system with some locally observed folds. In many seismic sections, faults geometry characterized by high to moderate dips. This specific geometry often interpreted as half graben and horst structures resulting from Eocene rifting. The structural geology of Bima field can be observed clearly at the WNW-ESE seismic line. It was dominated by N-S trending Normal fault that was probably related to the Eocene rifting which occurred predominantly at the west part of the study area. The main fault, occurred toward to the west, formed the half graben system which cut from basement to Parigi formation. However, others that placed at central part only cut the basement. The pre-Baturaja Sediment can be divided into two packages, which are syn-rift package and quiescence package while the post-Baturaja interval is the late post rift (sag) package.
SOURCE ROCK POTENTIAL AND DEPOSITIONAL ENVIRONMENT OF OIL SHALE BASED ON PETROGRAPHY CHARACTERISTICS AND ORGANIC GEOCHEMISTRY IN KAPUR IX, WEST SUMATRA Rahmola, Wiryadi Rizkiputra; Syafri, Ildrem; Winantris, Winantris; Suwarna, Nana
Journal of Geological Sciences and Applied Geology Vol 2, No 6 (2018): Journal of Geological Sciences and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v2i6.20868

Abstract

The research area were located in the Kapur IX District, Lima Puluh Kota Regency, West SumatraProvince. The research focused on Kapur IX Intramontane Sub-basin filled with oil shale. Theanalysis was carried out on shale samples of the Kapur IX Intramontane Sub-basin collected fromoutcrops to evaluate the source rock characteristics, including type of oil shale, depositionalenvironment, and dispersed organic matter. Geochemical analyses include total organic carbon(TOC) and Rock-Eval Pyrolysis, while organic petrographic analysis comprises organic materialcomposition and vitrinite reflectance. Based on the results the oil shale of the study area has lowto excellent quality and richness, type II and II kerogen content, with the maturity level of lateimmature to early mature. The dominant lamalginite maceral content in the sample tends toindicate the oil shale in the research area is a Green River type. The liptinite maceral group isdirectly proportional to the value of Potential Yield (PY) indicating that the maceral group, especiallyalginite plays a role in producing hydrocarbons in the oil shale of the study area. Based on thecomposition of maceral data, the depositional environment of oil shale of the Kapur IXIntramontane Sub-basin is interpreted to be a lacustrine environment with brackish watercondition.
Carbonate Facies and Depositional Environment On Baturaja Formation, “Mk” Field, Jatibarang Sub-Basin. Manwarjit, Manwarjit; Syafri, Ildrem; Mohamad, Febriwan; Ginanjar, Asep
Journal of Geological Sciences and Applied Geology Vol 5, No 3 (2021): Journal of Geological Science and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v5i3.35462

Abstract

Facies are defined as a rock body that have a combination of characteristics that are related to the physical, biological, or chemical aspects seen from rock lithology, sedimentary structures that distinguish the rock body from the rocks above, below or laterally in other parts (Walker, 1992). This paper aimed to determine the facies and depositional environment that developed in the upper part of Baturaja Formation. The facies distribution analysis can be used as an early interpretation for the characterization of carbonate reservoir. In this research, the facies and depositional environment analysis is carried out by integrating core data, thin section, and wireline log. Based on this analysis, it is identified that 4 facies were deposited in 4 different types of depositional environment and time, which are Facies Floatstone (Facies I), Facies Wackstone- Packstone (Facies II), Facies Floatstone- Framestone (Facies III), dan Facies Floatstone- Rudstone (Facies IV). All facies are correlated to every well using electrofacies analysis so that the facies distribution on every well can be shown. The output of facies distribution can be illustrated into a cross-section of well-correlation.Keywords:  Characterization, Facies distribution, Electrofacies, Well-correlation  
PETROGENESIS OF PASIR CUPU DIORITE, PLERED DISTRICT, PURWAKARTA, WEST JAVA Fachrudin, Kurnia Arfiansyah; Aini, Hana Nur; Syafri, Ildrem; Luthfi, Ahmad; Amitama, Emilia Bunga
Journal of Geological Sciences and Applied Geology Vol 2, No 5 (2018): Journal of Geological Sciences and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v2i5.20316

Abstract

Pasir Cupu located in the area of Plered and Sukatani, Purwakarta, West Java. It is geographically on 107o 26 '25.2' - 107o 27 '16.8' Easternmost and 6o 37 '22.8' - 6o 37 '03 "Southtermost. The Pasir Cupu is a formally formed intrusion, and classified into diorite (Streckeisen, 1978 in Gillespic and Styles, 1999). The method used is petroloogy, petrographic, and geochemical analysis using the XRF and CIPW methods. The megascopic appearance shows gray-colored rocks - in fresh, black-brown gray - in weathered ones; masive; very hard; fanheritic porphyritic textures; contains dark and bright minerals, dark minerals estimated to be amphibol, and pyroxene, and minerals that are bright feldspar; and masasaras are gray. Microscopic observations of 3 thin section of rock samples (CP 1, CP2 and CP3), showed porphyritic-afanitic texture, hypocrystalline, hypidiomorphic; composed of phenocryst plagioclase, amphibol, pyroxene, biotite, with mineral sizes between 0.1 mm - 4 mm; there are also small amounts of opaque, K-feldspar, quartz and carbonate minerals; with medium-coarse-grained bottom, consisting of plagioclase microlite, amphibole microlite, pyroxene and biotite microlite, carbonate minerals, chlorite and clay minerals. Based on geochemical analysis, Pasir Cupu is composed by diorite according to the Total Alkali Silica diagram. The magmatic series is included in the Calc-Alkaline and Thoeliitic series, the types of magma include the High-K and Medium-K (Calc-Alkaline Series) groups, as long as magma interacts with continental crust (continent), as long as the magma is based on the Island Arc Calc -Alkaline Basalt, the origin of magma origin ranged ± 140 Km - ± 185 Km in the Benioff zone and formed at temperatures of 1016 ̊ – 1062 ̊ C with rock specific gravity of 2.82 - 2.89 gram / cm3.
CARBON CAPTURE AND STORAGE (CCS) POTENTIAL AT LOW-RESISTIVITY RESERVOIR USING PETROPHYSICAL ANALYSIS AT "SOKA JINGGA" FIELD, TALANG AKAR FORMATION, ASRI BASIN Yusriyah, Dzakiyah; Syafri, Ildrem; Mohamad, Febriwan; Ralanarko, Dwandari; Aprillia, Belinda Rizka
Journal of Geological Sciences and Applied Geology Vol 8, No 1 (2024): Journal of Geological sciences and Applied Geology
Publisher : Faculty of Geological Engineering, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/gsag.v8i1.56477

Abstract

Carbon Capture and Storage (CCS) is a new technology that uses subsurface reservoirs to reduce carbon dioxide emissions by storing it below the surface. PT XYX conducted a comprehensive exploration of the CCS potential in Indonesia. The “Soka Jingga” Field, located at Talang Akar Formation, Asri Basin, is a potential candidate for CCS. The “Soka Jingga” Field has low resistivity reservoirs. There are five wells at “Soka Jingga” Field, namely DZ-1, DZ-2, DZ-3, DZ-4, and DZ-5. The objective of this study is to assess the CCS potential in the laminated sand interval of the “Soka Jingga” Field. The research method used is petrophysical analysis. The petrophysical data processing results show porosity values ranging from 23% to 35.5% with a net reservoir thickness ranging from 5.25 ft to 65 ft. The highest capacity was found in DZ-4 in the Zelda Member Zone 3, amounting to 37,923,654,924.52 kg or 37,923,654.92 tonnes. Summing the total capacity at "Soka Jingga" Field, the total CO2 storage capacity in the research area is 125,169,497,575.91 kg or 125,169,497.58 tonnes.
ASOSIASI FASIES & REKONSTRUKSI PALEOGEOGRAFI PADA ZONA TRANSISI FORMASI TALANGAKAR, CEKUNGAN ASRI, LEPASPANTAI BLOK TENGGARA SUMATRA, INDONESIA Ralanarko, Dwandari; Iqbal Ramadhan, M.; Fauzielly, Lili; ⠀, Winantris; Syafri, Ildrem; ⠀, Abdurrokhim
JURNAL GEOLOGI KELAUTAN Vol 19, No 2 (2021)
Publisher : Pusat Penelitian dan Pengembangan Geologi Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32693/jgk.19.2.2021.736

Abstract

Lapangan Widuri terletak pada konfigurasi antiklin tersesarkan yang terletak pada back arc basin Cekungan Asri, Sumatera Tenggara yang berumur Paleogen. Lapangan Widuri pertama kali dilakukan pemboran sumur eksplorasi pada tahun 1988 pada reservoir Batupasir Formasi Talangakar. Penelitian terdahulu belum pernah mengintegrasikan data sumur dan data seismik 3D untuk mengidentifikasi penyebaran reservoir batupasir dan rekonstruksi paleogeografi, sehingga dilakukan penelitian pada interval reservoir 35-A dan 34-B yang merupakan dua dari enam reservoir produktif di Lapangan Widuri. Tujuan dari penelitian ini adalah untuk pengkarakterisasian asosiasi fasies dan rekonstruksi paleogeografi dengan mengintegrasikan data deskripsi batuan inti, petrografi, log tali kawat, biostratigrafi, uji sumur, dan seismik 3D. Metode yang digunakan meliputi analisis fasies dan lingkungan pengendapan, analisis stratigrafi sikuen, pemetaan struktur, geometri reservoir, hingga rekonstruksi pengendapan.. Hasil analisis pada interval 35-A dan 34-B tersusun atas sembilan litofasies yaitu, F1, F2, F3, F4, F5, F6, F7, F8, F9. Interval 35-A menunjukkan lingkungan pengendapan Fluvial dengan 3 asosiasi fasies yaitu, Fluvial Channel, Floodplain, dan Swamp, sedangkan pada interval 34-B menunjukkan lingkungan pengendapan Fluvio-Tide Delta dengan 3 asosiasi fasies yaitu, Distributary Channel, Tidal Flat, dan Swamp. Distribusi fasies Channel digambarkan pada analisis geometri, stratigrafi sikuen, dan seismik 3D yang menunjukkan arah pengendapan dengan arah Baratlaut – Tenggara.  Data biostratigrafi berupa kemunculan akhir fosil polen berumur Oligosen Akhir dan kemunculan awal fosil foraminifera berumur Miosen Awal menunjukkan perubahan paleoenvironment secara gradual dari terrestrial (darat) menjadi transisi, serta paleoclimate dari iklim basah menjadi iklim kering yang terjadi pada rentang umur Oligosen Akhir – Awal Miosen. Berdasarkan data batuan inti yang menunjukkan perubahan litofasies Batupasir simpang siur dan Batulempung masif menjadi  Batupasir flaser dan Batulempung lenticular mencirikan pengaruh dari pasang surut air laut yang dikontrol oleh curah hujan dan iklim. Paleogeografi pada Interval 35-A dan 34-B secara umum mengikuti dua tahapan perekahan tektonik yaitu: 1) fase Late Syn-Rift dicirikan oleh lingkungan sungai berkelok dan dataran Alluvial pada interval 35-A (Oligosen Akhir); 2) fase Early Post-Rift, dicirikan oleh lingkungan sungai berkelok dan Deltaic pada interval 34-B (Miosen Awal).
FASIES DAN LINGKUNGAN PENGENDAPAN BATUGAMPING FORMASI PARIGI DI DAERAH PANGKALAN, KARAWANG, JAWA BARAT Fernando, Yogi; Syafri, Ildrem; Jambak, Moh. Ali
Bulletin of Scientific Contribution Vol 13, No 1 (2015): Bulletin of Scientific Contribution
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2353.439 KB) | DOI: 10.24198/bsc.v13i1.8384

Abstract

Facies and depositional environments were studied to determine the growth of the carbonate rocks of Parigi Formation in Pangkalan District, Karawang, West Java. The study was conducted at nine outcrops to identify the characteristics of the macroscopic observations. Some thin section of limestone sample was taken at each location of the observations used to make microscopic analysis. Macroscopic and microscopic analysis of twenty one rock sample classified into six facies, namely: coral bafflestone facies, coral bindstone facies, algae - foraminifera packstone facies, foraminifera packstone facies, interbedded wackestone – grainstone facies, and mudstone facies. A composite log created on the outcrops around G.Guha to determine the stratigraphic of Parigi Formation in Pangkalan District. Facies succession in the composite log grouping facies into several depositional facies associations, namely: fore reef facies, offreef slope facies, reef front facies, and reef flat facies. Depositional environments are fore reef and core reef.
Co-Authors A. Sudradjat A. Sudradjat A. Sudradjat Abdurrokhim Almabrury Abdurrokhim ⠀ Abdurrokhim, . Achmad Noerkhaerin Putra Adi Hardiyono Adjat Sudradjat Adjat Sudradjat Adjat Sudradjat Adjat Sudradjat Adjat Sudradjat Adjat Sudradjat Adjat Sudrajat Adjat Sudrajat Adriano Mazzini Agus Didit Haryanto Agus Didit Haryanto -, Agus Didit Haryanto Agus Nur, Andi Agustiany, Irfani Agustina Djafar Agustinus, Eko Tri Sumarnadi Agustya Agustya Ahadi Ahmat Lamburu Ahmad Luthfi Aini, Hana Nur Ajat Sudrajat Almun Madi Amitama, Emilia Bunga Andi Agus Nur Andi Agus Nur, Andi Agus Antonius Bambang Yuniarto -, Antonius Bambang Yuniarto Aprillia, Belinda Rizka Ardiansyah, Reza Arief Prabowo Asep Mohamad Ishaq Shiddiq Aton Patonah Awaludin, Winarno Benyamin Benyamin Benyamin Benyamin, Benyamin Benyamin, Benyamin Billy G. Adhiperdana Bonar Tua Halomoan Marbun Brian Christiantoro Budhy Agung Budi Muljana Budiadi, E. Christiantoro, Brian Deni Wahyuadi Denis, Mutebi Deny Setiady Dicky Muslim Djadjang Jedi Setiadi Djajang Sukarna Dwandari Ralanarko Dwandari Ralanarko E. T. Paripurno E. T. Paripurno Edy Sunardi Eko Tri Sumarnadi Agustinus Eko Tri Sumarnadi Agustinus Electricia, K.S. Elfitra, Dhanu Embara, Patra Emi Sukiyah Emy Sukiyah Euis Tintin Yuningsih Euis Y. Yuningsih, Euis Y. Evaristus Budiadi F. G, Aiwoy Fachrudin, Kurnia Arfiansyah Fadhly, Ahmad Febri Hirnawan Febriwan Mohamad Febriwan Mohammad, Febriwan Febyani, Siska Firman Herdiansyah, Firman G. Hartono G. Hartono Ginanjar, Asep Hadian, Muhamad Sapari Dwi Hadian, Muhamad Sapari Dwi Hana Morina, Hana Hananto Kurnio Hananto kurnio Hartawi Riskha Hartawi Riskha, Hartawi Hartono, G. Hartono, Udi Haryadi Permana Hastowo Resesiyanto Hendarmawan Hendarmawan Heri Hermiyanto Zajuli Heri Hermiyanto Zajuli, Heri Hermiyanto Hermes Panggabean Hermes Panggabean Hermes Panggabean Herry -, Herry Hilarius Rodriguez Hilarius Rodriguez, Hilarius Hill Gendoet Hartono Hutabarat, Johannes ilmi, irpan Iqbal Ramadhan, M. Iqbal, M. Irfani Agustiany Irzon, Ronaldo Irzon, Ronaldo Iskandar Zulkarnain Ismawan Ismawan Ismawan Ismawan, Ismawan Iwan Setiawan Januar Arifin Johanes Hutabarat Johanes Hutabarat Johannes Hutabarat K, Mohammad Fatahillah Pradana Kapid, Roebiyanto Karyono Karyono Kuntadi Nugrahanto Kurnia Arfiansyah Kurnia Arfiansyah, Kurnia kurnio, Hananto kurnio, Hananto Lia Jurnaliah Lili Fauzielly M. Iqbal M. Iqbal Manwarjit, Manwarjit Marbun, Bonar Tua Halomoan Masturyono Masturyono Mayasari, Verna Mega F. Rosana, Mega F. Mega Fatimah Rosana Mega Fatimah Rosana Moeh. Ali Jambak Moeh. Ali Jambak, Moeh. Ali Moh. Heri Hermiyanto Zajuli Moh. Heri Hermiyanto Zajuli Muhamad Sapari Dwi Hadian Muhammad Kurniawan Alfadli Muhammad Zulfikar Muhammad Zulfikar Nana Sulaksana Nana Suwarna Nana Suwarna Nana Suwarna Nanda Natasia Nazar Nurdin Noor Cahyo Dwi Aryanto Noor Cahyo Dwi Aryanto Novianti Wahyuni Purasongka, Novianti Wahyuni Nuarihidayah, Gilang Diesty Nugroho, Sigit Dwi Nuraini , Siti Paripurno, E. T. Petra Wattimury Prabowo, Arief Pranowo Nugroho Pranowo Nugroho Prasetio, Rasi Prasetio, Rasi Prasetya, Muhammad Nurul Huda Purnama Sendjaja Purnama Sendjaja Puspita, Ramelia Eka Rahmola, Wiryadi Rizkiputra Ralanarko, Dwandari Ramzis, Novaldo Rasi Prasetio Resesiyanto, Hastowo Reza Ardiansyah Reza Ardiansyah Ridho Kresna Wattimena Ridho Kresna Wattimena Rivaldy, Mohammad Rodriguez, Hilarius Roebyanto Kapid Ronaldo Irzon Ronaldo Irzon Ronaldo Irzon Rusman Rinawan -, Rusman Rinawan Satrio Satrio Satrio, Satrio Satrio, Satrio Sendjaja, Purnama Sendjaja, Purnama Sendjaja, Purnama Shaska Zulivandama Shiddiq, Asep Mohamad Ishaq Siti Nuraini Soffian Hadi Stefanus Suryo Cahyono SUBAGJA, MUHAMAD AGAM Suci Sarah Andriany, Suci Sarah Sudarsana, Muhammad Rizki Sudradjat , Adjat Sudradjat, A. Sudradjat, A. Sudradjat, Adjat Sudradjat, Adjat Sudrajat, Adjat Sugianto, Asep Supriyanto Rohadi Suwarna, Nana Swasty Aninda Piranti Syaiful Alam Syaiful Bachri Tampubolon, Armin Taufan, Yoqi Ali Udaya Kamiludin Udi Hartono Udi Hartono Vijaya Isnaniawardhani Viqnoriva, S.N. Wahyu Sugiarto Wattimury, Petra Wiguna, Purwa Wilda Aini Nurlathifah Winantris Winantris Winarti Winarti Wrahaspati Rulandoko Yan Rizal, Yan Yoga Andriana Sendjaja Yogi Fernando, Yogi Yudi Darlan Yusriyah, Dzakiyah Zakaria, Firman Zarkasyi, Ahmad ZULFAHMI ZULFAHMI Zulfialdi Zakaria, Zulfialdi Zulkarnain, Iskandar ⠀, Abdurrokhim ⠀, Winantris