Gaya APA
Hadikusumu, D. (1961).
On The Occurrence Of Mulfur On The Island OF Damar .
Bandung:
Pusat Sumber Daya Geologi.
Gaya MLA
Hadikusumu, Djajadi.
"On The Occurrence Of Mulfur On The Island OF Damar".
Bandung:
Pusat Sumber Daya Geologi,
1961.
Panas Bumi.