Gaya APA

VII, A., CERTIFICATES, C, Q. (1986). OMBILIN II COAL MINE DEVELOPMENT AND TRANSPORTATION PROJECT GEOLOGICAL REPORT . Bandung: Pusat Sumber Daya Geologi.

Gaya MLA

VII, APPENDIX., CERTIFICATES, COAL, QUALITY. "OMBILIN II COAL MINE DEVELOPMENT AND TRANSPORTATION PROJECT GEOLOGICAL REPORT". Bandung: Pusat Sumber Daya Geologi, 1986. Batubara.