Gaya APA

Venture, K, G, J. (1987). South Sumatera Coal Exploration Project Comprative Evalution Of Sputh Sumatera Coal Resources . Bandung: Regu Geologi, Geokimia dan Geofisika.

Gaya MLA

Venture, Kinhill-Otoo, Gold, Joint. "South Sumatera Coal Exploration Project Comprative Evalution Of Sputh Sumatera Coal Resources". Bandung: Regu Geologi, Geokimia dan Geofisika, 1987. Batubara.