5 1 20 Ruskin Primary Author Iswan Kadir Primary Author G. Davey Primary Author R. Langmead Primary Author mixed material Jakarta Antam - Unit Geomin 1995 Ruskin Primary Author Iswan Kadir Primary Author G. Davey Primary Author D. Olberg Primary Author R. Langmead Primary Author mixed material Jakarta Antam - Unit Geomin 1995 Period october to december 1994 ( includes expenditure for 1994 ) Iswan Kadir Primary Author G. Davey Primary Author D. Olberg Primary Author R. Langmead Primary Author B. Tambunan Primary Author mixed material Jakarta PT. Aneka Tambang 1994 period july to september 1994 Iswan Kadir Primary Author G. Davey Primary Author D. Olberg Primary Author R. Langmead Primary Author B. Tambunan Primary Author E. Sutrisno Primary Author mixed material Jakarta PT. Aneka Tambang 1994 Period april to june 1994 Iswan Kadir Primary Author G. Davey Primary Author V. Preston Primary Author R. Langmead Primary Author B. Tambunan Primary Author mixed material Jakarta PT. Aneka Tambang 1994