Property Evaluation Report South Sangihe Island 1998
Independent Technical Report Sangihe Property 2010
MOU-2 Gold Prospect Sangihe Island North Sulawesi Indonesia 1996 Exploration Summary Report
Atlas Geokimia Daerah Sulawesi Bagian Utara Geochemical Atlas of Northern Sulawesi Rgional Geochemical Atlas Series of Indonesia 4 : Northern Sulawesi 2008
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24th Quarterly Progress Report on Operations in Bolaang Mongondow - Sulawesi Utara, Indonesia: Period Ending December 31, 1993 , PT Antam Mintu Mining
Quarterly report on gold exploration DU 189, DU 293, Paleleh-Sumalata, Sulawesi Utara and Tengah 7th quarterly report, July-September 1987
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Report on end of general survey and pre contract of work period part 1: report on the exploration conducted in KP289 North Sulawesi volume 2 - appendices
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Fiftieth quarterly progress report on operations in block 2, Sulawesi Utara, Indonesia period ending December 31, 1983: volume 1
The general geological survey of block 2, Sulawesi Utara, indonesia (from September 1971 to August 1973)
P.T. Tropic Endeavour Indonesia thirty-seventh quarterly progress report of block 2, Sulawesi Utara, Indonesia period ending September 30, 1980
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