Gaya APA
SUTOJO, S., KLEINSTEUBER, F. (2007).
Effective Price strategy to increase your profit: .
Jakarta:
Damar Mulia Pustaka.
Gaya MLA
SUTOJO, Siswanto., KLEINSTEUBER, F..
"Effective Price strategy to increase your profit:".
Jakarta:
Damar Mulia Pustaka,
2007.
Text.