Kajian kelayakan teknis-ekonomis tambang emas bawah tanah PT. Natarang Mining
First relinquishment report Lampung Project South Sumatera
Drillhole summary log Way Linggo Project -Lampung-
Way Linggo Project Lampung: Feasibility Study, Revision, January 1999 Section 1 Executive Summary
Third reliquishment report 1992 Lampung Project South Sumatera
Kumpulan peta-peta Way Linggo Project Lampung