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Hirofumi MURAOKA
Institute for Geo-Resources and Environment, GSJ
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Asnawir NASUTION
Directorate of Volcanology and Geological Hazard Mitigation. J1.
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Minoru URAI
Institute of Geoscience, GSJ
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Masaaki TAKAHASHI
Research Center for Deep Geological Environments, GSJ
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Isao TAKASHIMA
Akita University
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Janes SIMANJUNTAK
Directorate of Mineral Resources Inventory, J1
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Herry SUNDHORO
Directorate of Mineral Resources Inventory, J1
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Dany ASWIN
Directorate of Mineral Resources Inventory, J1
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Fredy NANLOHY
Directorate of Mineral Resources Inventory, J1
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Kastiman SITORUS
Directorate of Mineral Resources Inventory, J1
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Hiroshi TAKAHASHI
Mitsubishi Materials Natural Resources Development Corp.
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Takehiro KOSEKI
Mitsubishi Materials Natural Resources Development Corp.