Gaya APA

kawan, -, D, K., Katili, J. (1982). Discovery Of Primary Tungsten And Tin Mineralization In Northern Sumatra, Indonesia (A Case History) ; A Generalizes Classification Of Some Tungsten Deposits And Their Relation To 'S' And 'I', Ilmenite And Magnetite Granite Types (No.6.bul.vol.2 Maret 1982) . Bandung: Direktorat Jenderal Pertambangan Umum.

Gaya MLA

kawan, -, Dan, Kawan., Katili, J.A. "Discovery Of Primary Tungsten And Tin Mineralization In Northern Sumatra, Indonesia (A Case History) ; A Generalizes Classification Of Some Tungsten Deposits And Their Relation To 'S' And 'I', Ilmenite And Magnetite Granite Types (No.6.bul.vol.2 Maret 1982)". Bandung: Direktorat Jenderal Pertambangan Umum, 1982. Text.