Gaya APA
Elifas, J, D. (1974).
Report On The Assessment Of The Engineering Geological Condition Of The Proposed Plantsite Cement Plant Baturaja,South Sumatra .
Bandung:
Pusat Sumber Daya Geologi.
Gaya MLA
Elifas, Joedo, D..
"Report On The Assessment Of The Engineering Geological Condition Of The Proposed Plantsite Cement Plant Baturaja,South Sumatra".
Bandung:
Pusat Sumber Daya Geologi,
1974.
Bukan Logam.