Gaya APA
Case, Karl E., Oster, Sharon M, Fair, Ray C.. (2020).
Principles of economics (13e).
London:
Pearson Education.
Gaya Chicago
Case, Karl E., Oster, Sharon M, Fair, Ray C..
Principles of economics.
13e
London:
Pearson Education,
2020.
Buku.
Gaya MLA
Case, Karl E., Oster, Sharon M, Fair, Ray C..
Principles of economics.
13e
London:
Pearson Education,
2020.
Buku.
Gaya Turabian
Case, Karl E., Oster, Sharon M, Fair, Ray C..
Principles of economics.
13e
London:
Pearson Education,
2020.
Buku.