Gaya APA
Cooper, Donald R. (2001).
Business research methods (7e).
Boston:
McGraw Hill.
Gaya Chicago
Cooper, Donald R.
Business research methods.
7e
Boston:
McGraw Hill,
2001.
CD ROM.
Gaya MLA
Cooper, Donald R.
Business research methods.
7e
Boston:
McGraw Hill,
2001.
CD ROM.
Gaya Turabian
Cooper, Donald R.
Business research methods.
7e
Boston:
McGraw Hill,
2001.
CD ROM.