Gaya APA
Association, I, P. (2000).
Proceedings of Twenty Sevent Annual Convention Jakarta February 1-3, 2000 .
Jakarta:
Indonesian Petroleum Association.
Gaya MLA
Association, Indonesian, Petroleum.
"Proceedings of Twenty Sevent Annual Convention Jakarta February 1-3, 2000".
Jakarta:
Indonesian Petroleum Association,
2000.
Buku Text.