Gaya APA
Subagja, R.
(2002).
Prosiding seminar sumber daya mineral - MMI
.
Jakarta:
PT. Freeport Indonesia.
Gaya MLA
Subagja, Rudi.
"Prosiding seminar sumber daya mineral - MMI".
Jakarta:
PT. Freeport Indonesia,
2002.
Prosiding/Procceding.