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.