Gaya APA

Herudyanto, . et al (2000). Southeast asian coal geology conference . Bandung: Directorate of Mineral Resources on Association with Indonesia Assocition of Geologist.

Gaya MLA

Herudyanto, . et al. "Southeast asian coal geology conference". Bandung: Directorate of Mineral Resources on Association with Indonesia Assocition of Geologist, 2000. Prosiding/Procceding.