Quarterly report: Gunung Salak projectto Directorat Jenderal Pertambangan Umum - Desember 1996
Quarterly report for KP 1137 KW96PP0127B: Gunung Salak Project
West Java Gunung Parakasak project KPDU 1118 (Gunung Karang) Republic of Indonesia: Reconnaissance Programme September 1996
West Java Gunung Batu Project KPDU 1137 (Gunung Salak) Republic of Indonesia: Reconnaissance Programme
North Sumatra Project KP. DU 336 Republic of Indonesia September 1996
West java gunung batu project KPDU 1137 (Gunung Salak) Republic of Indonesia : Reconnaissance Programme august 1996