Gaya APA

Katili,J.A., . (1983). Ombilin II Coal Mine Development and Transportation Project Terms of Reference for Coal Exploration/Transportation/Engineering Consultant . : Direktorat Jenderal Pertambangan Umum.

Gaya MLA

Katili,J.A., . "Ombilin II Coal Mine Development and Transportation Project Terms of Reference for Coal Exploration/Transportation/Engineering Consultant". : Direktorat Jenderal Pertambangan Umum, 1983. Text.