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3. Geochemical exploration for gold in tropical soils—four contrasting case studies from West Africa;Bowell;Trans. Inst. Min. Metall., Sect. B: Appl. Earth Sci.,1996
4. A brief inspection of the Tomakin Park Gold Mine;Bowman,1979
5. The geochemistry of gold and its deposits;Boyle;Geol. Surv. Can., Bull.,1979