Gaya APA
Mankiw, Gregory. (2018).
Principles of Economics .
USA:
Cengage Learning.
Gaya Chicago
Mankiw, Gregory.
Principles of Economics.
USA:
Cengage Learning,
2018.
Text.
Gaya MLA
Mankiw, Gregory.
Principles of Economics.
USA:
Cengage Learning,
2018.
Text.
Gaya Turabian
Mankiw, Gregory.
Principles of Economics.
USA:
Cengage Learning,
2018.
Print.