Rahadinata, Tony, Center for Mineral, Coal and Geothermal Resources, Geological Agency, Ministry of Energy and Mineral Resources
Rai, Made Astawa, Institut Teknologi Bandung (ITB)
Ramadan, Bimastyaji Surya, Universitas Diponegoro
Ramdhani, Muhammad Rizki, Center for Mineral, Coal and Geothermal Resources, Geological Agency, Ministry of Energy and Mineral Resources
RASJAD, SYAFEI S., R & D Centre for Mineral and Coal Technology
Rianda, Sapta, Research and Development Centre for Mineral and Coal Technology
Rianda, Sapta, R&D Centre for Mineral and Coal Technology
RIDWAN, RIDWAN, Centre for Technology of Nuclear Industry Materials, National Nuclear Energy Agency (BATAN),
Rijwan, Iwan, R&D Centre for Mineral and Coal Technology
RIJWAN, IWAN, Research and Development Centre for Mineral and Coal Technology
Rizal, Khairu, UPN "Veteran" Yogyakarta
Rochani, Siti, Research and Development Centre for Mineral and Coal Technology
Rochani, Siti, Research and Development for Mineral Coal Technology
ROCHANI, SITI, R&D Centre for Mineral and Coal Technology
Rochani, Siti, R & D Centre for Mineral and Coal Technology (Puslitbang Teknologi Mineral dan Batubara)
Rochani, Siti, National Research and Innovation Agency
Rochani, Siti, Research Center for Mining Technology, Nano Material Research Organization, National Research and Innovation Agency
Rodliyah, Isyatun, Research and Development Centre for Mineral and Coal Technology
Rodliyah, Isyatun, R&D Centre for Mineral and Coal Technology
Rodliyah, Isyatun, R & D Centre for Mineral and Coal Technology

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