Gaya APA
Cooper, Donald R.. (2014).
Business research methods .
New York:
McGraw Hill.
Gaya Chicago
Cooper, Donald R..
Business research methods.
New York:
McGraw Hill,
2014.
Text.
Gaya MLA
Cooper, Donald R..
Business research methods.
New York:
McGraw Hill,
2014.
Text.
Gaya Turabian
Cooper, Donald R..
Business research methods.
New York:
McGraw Hill,
2014.
Print.