Gold 87 Joint Symposium exploration-mining-processing-extration and enviroment biohydrometallurgy for gold recovery, Bandung, Indonesia, 31 August - 2 September 1987
The Departement of Mining Engineering Bandung Institute of Technology
Joint symposium exploration-mining-processing-extraction and environment: pengolahan emas perak Unit Pertambangan Emas Cikotok 1939-1986