Gaya APA
Finnida, . (1987).
Prefeasibility Study For Peat Power Plant In Palangkaraya .
Bandung:
Pusat Sumber Daya Geologi.
Gaya MLA
Finnida, .
"Prefeasibility Study For Peat Power Plant In Palangkaraya".
Bandung:
Pusat Sumber Daya Geologi,
1987.
Batubara.