Gaya APA

Geologi, P, S, D. (1985). ASEAN COAL DEVELOPMENT PROJECT Prepart For Asian Development Bank And Escap Regional Energy Development Program (Funded By UNDP) . Bandung: Pusat Sumber Daya Geologi.

Gaya MLA

Geologi, Pusat, Sumber, Daya. "ASEAN COAL DEVELOPMENT PROJECT Prepart For Asian Development Bank And Escap Regional Energy Development Program (Funded By UNDP)". Bandung: Pusat Sumber Daya Geologi, 1985. Batubara.