Gaya APA

Harjanto, S. (1993). Prospects of calcium carbonate, feldspar and refractory brick industries in Indonesia . Bandung: Pusat Sumber Daya Geologi.

Gaya MLA

Harjanto, Sarno. "Prospects of calcium carbonate, feldspar and refractory brick industries in Indonesia". Bandung: Pusat Sumber Daya Geologi, 1993. Umum.