Gaya APA
Ass.(IPA), I, P. (1995).
TWENTY- FOURTH ANNUAL CONVENTION - Volum 1 .
Jakarta:
Jakarta : Indonesian Petroleum Association,.
Gaya MLA
Ass.(IPA), Indonesian, Petroleum.
"TWENTY- FOURTH ANNUAL CONVENTION - Volum 1".
Jakarta:
Jakarta : Indonesian Petroleum Association,,
1995.
Text.