Gaya APA

Hariwidjaja, . et al (1990). Preliminary report on Regional Geochemical Exploration in The Tebingtinggi Area (part of Bengkulu -D) . Bandung: Pusat Sumber Daya Geologi.

Gaya MLA

Hariwidjaja, . et al. "Preliminary report on Regional Geochemical Exploration in The Tebingtinggi Area (part of Bengkulu -D)". Bandung: Pusat Sumber Daya Geologi, 1990. Geokimia.