Gaya APA

Indonesia, I, A, G. (2001). 30th Annual convention Indonesian association of geologist & 10th geosea regional congress on geology, mineral and energy resources . Yogyakarta: Ikatan Ahli Geologi Indonesia (IAGI).

Gaya MLA

Indonesia, Ikatan, Ahli, Geologi. "30th Annual convention Indonesian association of geologist & 10th geosea regional congress on geology, mineral and energy resources". Yogyakarta: Ikatan Ahli Geologi Indonesia (IAGI), 2001. Prosiding/Procceding.