Gaya APA

(IPA), I, P, A. (1996). Indonesian Petroleum Association Silver Anniversary Convetion Jakarta, october 8-10, 1996 Volume 2 . Jakarta: Jakarta : Indonesian Petroleum Association,.

Gaya MLA

(IPA), Indonesia, Petroleum, Ass. "Indonesian Petroleum Association Silver Anniversary Convetion Jakarta, october 8-10, 1996 Volume 2". Jakarta: Jakarta : Indonesian Petroleum Association,, 1996. Text.