Gaya APA
BERGSTROM, T, C., VARIAN, H, R. (2003).
Workouts in Intermediate Microeconomics (Sixth Edition).
New York:
W.W.Norton And Company.
Gaya MLA
BERGSTROM, Theodore, C.., VARIAN, Hal, R..
"Workouts in Intermediate Microeconomics".
Sixth Edition
New York:
W.W.Norton And Company,
2003.
Text.