Gaya APA
Cooper, Donald R.. (2014).
Business research methods 12th Edition .
New York:
McGraw Hill.
Gaya Chicago
Cooper, Donald R..
Business research methods 12th Edition.
New York:
McGraw Hill,
2014.
Koleksi E-Book.
Gaya MLA
Cooper, Donald R..
Business research methods 12th Edition.
New York:
McGraw Hill,
2014.
Koleksi E-Book.
Gaya Turabian
Cooper, Donald R..
Business research methods 12th Edition.
New York:
McGraw Hill,
2014.
Koleksi E-Book.