Gaya APA
Mankiw, N, G.
(2015).
Principles of economics 7-ed
(
ED-7)
.
Stamford:
Stamford : Cengage, 2015.
Gaya MLA
Mankiw, N., Gregory.
"Principles of economics 7-ed".
ED-7
Stamford:
Stamford : Cengage, 2015,
2015.
Text.