Gaya APA
Mankiw, N. Gregory. (2018).
Principles of Economics (8th ed.).
Singapore:
Cengage.
Gaya Chicago
Mankiw, N. Gregory.
Principles of Economics.
8th ed.
Singapore:
Cengage,
2018.
Text.
Gaya MLA
Mankiw, N. Gregory.
Principles of Economics.
8th ed.
Singapore:
Cengage,
2018.
Text.
Gaya Turabian
Mankiw, N. Gregory.
Principles of Economics.
8th ed.
Singapore:
Cengage,
2018.
Print.