Gaya APA
SALVATORE, Dominic. (2003).
Principles of Economics .
New York:
Mc Graw Hill education.
Gaya Chicago
SALVATORE, Dominic.
Principles of Economics.
New York:
Mc Graw Hill education,
2003.
Buku.
Gaya MLA
SALVATORE, Dominic.
Principles of Economics.
New York:
Mc Graw Hill education,
2003.
Buku.
Gaya Turabian
SALVATORE, Dominic.
Principles of Economics.
New York:
Mc Graw Hill education,
2003.
Buku.