Preliminary Study on Limbung Project 1983
Preliminary Study on Limbung Project 1995
Report on preliminary detailed geologic mapping in the vicinity of Cirotan Vein ( With special emphasis on structural investigations )
Preliminary geological report Lanut grid area, Lanut prospect North Sulawesi, Indonesia
Laporan Due Diligence PT. Jelai Cahaya Mineral : Preliminary Report (Geology)