Gaya APA

MADIADIPOERA, T., G.trafomov, . (). geological prospecting For coal at Sigihan(lower-Course of mahakam River region ,east kalimantan . Bandung: Direktorat Sumber Daya Mineral.

Gaya MLA

MADIADIPOERA, TUSHADI., G.trafomov, . "geological prospecting For coal at Sigihan(lower-Course of mahakam River region ,east kalimantan". Bandung: Direktorat Sumber Daya Mineral, . Batubara.