Gaya APA

A.ACHDAN, S, D, (. (2011). PETA GEOLOGI LEMBAR AMBON,MALUKU GEOLOGICAL MAP OF THE AMBON SHEET, MALUKU . Bandung: badan geologi geological agency.

Gaya MLA

A.ACHDAN, S.TJOKROSAPOETRO,E.RUSMANA, Dan, (and). "PETA GEOLOGI LEMBAR AMBON,MALUKU GEOLOGICAL MAP OF THE AMBON SHEET, MALUKU". Bandung: badan geologi geological agency, 2011. Buku.