Gaya APA

G., D, R, K. (1957). Sungai Dua Ore Field I Compilation On Pits (Section, Essential Chemical Compunds and Present Condition) . Indonesia: Pusat Sumber Daya Geologi.

Gaya MLA

G., Dr., Rohland, K.. "Sungai Dua Ore Field I Compilation On Pits (Section, Essential Chemical Compunds and Present Condition)". Indonesia: Pusat Sumber Daya Geologi, 1957. Logam.