Gaya APA

Koei, N. (1982). Goverment of the republic of Indonesia Lahendong geothermal plant development project study report . Bandung: Pusat Sumber Daya Geologi.

Gaya MLA

Koei, Nippon. "Goverment of the republic of Indonesia Lahendong geothermal plant development project study report". Bandung: Pusat Sumber Daya Geologi, 1982. Panas Bumi.