Gaya APA

Dwipa, S. et al (2003). A silver year of Indonesia geothermal development-a lesson learn pre conference course . Bandung: Pusat Sumber Daya Geologi.

Gaya MLA

Dwipa, Sjafra. et al. "A silver year of Indonesia geothermal development-a lesson learn pre conference course". Bandung: Pusat Sumber Daya Geologi, 2003. Panas Bumi.