Gaya APA

Bergstrom, T, C., Varian, H, R. (2003). Workouts in Intermediate Microeconomics Ed. 6 (6). Jakarta: W.W Norton & Company.

Gaya MLA

Bergstrom, Theodore, C.., Varian, Hal, R.. "Workouts in Intermediate Microeconomics Ed. 6". 6 Jakarta: W.W Norton & Company, 2003. Text.