Gaya APA
Djumhani, . (1981).
Metallic Mineral Deposits of Indonesia A Metallogenic Approach .
Bandung:
Pusat Sumber Daya Geologi.
Gaya MLA
Djumhani, .
"Metallic Mineral Deposits of Indonesia A Metallogenic Approach".
Bandung:
Pusat Sumber Daya Geologi,
1981.
Umum.