Gaya APA
Geologi, P, S, D. (1998).
Integrated Study On Coal Transportation System In The Southern Part Of Sumatra (Aroubd Musi River) .
Bandung:
Direktorat Sumber Daya Mineral.
Gaya MLA
Geologi, Pusat, Sumber, Daya.
"Integrated Study On Coal Transportation System In The Southern Part Of Sumatra (Aroubd Musi River)".
Bandung:
Direktorat Sumber Daya Mineral,
1998.
Batubara.