Gaya APA
SUMMARY, . (1979).
SURVEI FOR THE REHABILITATION OF OMBILIN COAL MINE GEOLOGICAL EKSPLORATION REPORT .
Bandung:
Pusat Sumber Daya Geologi.
Gaya MLA
SUMMARY, .
"SURVEI FOR THE REHABILITATION OF OMBILIN COAL MINE GEOLOGICAL EKSPLORATION REPORT".
Bandung:
Pusat Sumber Daya Geologi,
1979.
Batubara.