Gaya APA

Citrosiswoyo, W., Bachtiar, A. (2002). The 31st annual convention Indonesian association of geologist : energy geodynamic (volume 1) (1st vol). Surbaya: Ikatan Ahli Geologi Indonesia (IAGI).

Gaya MLA

Citrosiswoyo, Wahyudi., Bachtiar, Andang. "The 31st annual convention Indonesian association of geologist : energy geodynamic (volume 1)". 1st vol Surbaya: Ikatan Ahli Geologi Indonesia (IAGI), 2002. Prosiding/Procceding.