Gaya APA

Sulistiyo, U, W. (1981). Status Paper The Development and Utilization Programme of Small Coal Resources in Indonesia . : Departemen Energi Dan Sumber Daya Mineral.

Gaya MLA

Sulistiyo, Ukar, W.. "Status Paper The Development and Utilization Programme of Small Coal Resources in Indonesia". : Departemen Energi Dan Sumber Daya Mineral, 1981. Text.