Gaya APA
Case, K, E., Fair, R, C. (1994).
Principles of Macroeconomics Study Guide 3rd Ed (3rd Ed).
United Stated of America:
Prentice Hall.
Gaya MLA
Case, Karl, E., Fair, Ray, C.
"Principles of Macroeconomics Study Guide 3rd Ed".
3rd Ed
United Stated of America:
Prentice Hall,
1994.
Text.