Gaya APA
Isdianto, I. (2010).
Energy Resource, Its Formation and How it is used, Oil & Gas Exploration .
Jakarta Selatan:
Pustaka Lebah.
Gaya MLA
Isdianto, Itok.
"Energy Resource, Its Formation and How it is used, Oil & Gas Exploration".
Jakarta Selatan:
Pustaka Lebah,
2010.
Text.