Gaya APA
Moore, D, &. (1982).
Coal Exploration Feasibility And Prefeasibility Studies Proposed Opencut Coalmines South Sumatra,Indonesia .
Bandung:
Directorate General Of Mines.
Gaya MLA
Moore, Dames, &.
"Coal Exploration Feasibility And Prefeasibility Studies Proposed Opencut Coalmines South Sumatra,Indonesia".
Bandung:
Directorate General Of Mines,
1982.
Batubara.