Gaya APA

nagel,p.lecomte, L, B., muchsin, A. (1985). Cta 39A Follow-Up Work In The Long Laai Area,N.E.Kalimantan(the long laai project) . Bandung: Pusat Sumber Daya Geologi.

Gaya MLA

nagel,p.lecomte, L.Le, Bel,j.-l., muchsin, A.machali. "Cta 39A Follow-Up Work In The Long Laai Area,N.E.Kalimantan(the long laai project)". Bandung: Pusat Sumber Daya Geologi, 1985. Logam.