Gaya APA
Madiadipoera, T.
(1969).
Part III Volume And Methods Of Work On Coal
.
Bandung:
Pusat Sumber Daya Geologi.
Gaya MLA
Madiadipoera, T..
"Part III Volume And Methods Of Work On Coal".
Bandung:
Pusat Sumber Daya Geologi,
1969.
Batubara.