Gaya APA

Kinhill, ., Gold, O. (1985). South Sumatra Coal Exploration Project Muara Tiga Besar Feasibilty Study . Bandung: Pusat Sumber Daya Geologi.

Gaya MLA

Kinhill, ., Gold, Otto. "South Sumatra Coal Exploration Project Muara Tiga Besar Feasibilty Study". Bandung: Pusat Sumber Daya Geologi, 1985. Batubara.