Gaya APA

Mineral, D, S, D. (1985). Mineral Resources-Based Investment Potential of West Sumatra, Aceh, and North Sulawesi . Bandung: Direktorat Sumber Daya Mineral.

Gaya MLA

Mineral, Direktorat, Sumber, Daya. "Mineral Resources-Based Investment Potential of West Sumatra, Aceh, and North Sulawesi". Bandung: Direktorat Sumber Daya Mineral, 1985. Umum.