Penggayaan APA
COOPER, Donald R.. (2003).
Business research methods (8th Ed. ).
Boston:
McGraw Hill.
Chicago Style
COOPER, Donald R..
Business research methods.
8th Ed.
Boston:
McGraw Hill,
2003.
Buku.
MLA Style
COOPER, Donald R..
Business research methods.
8th Ed.
Boston:
McGraw Hill,
2003.
Buku.
Turabian Style
COOPER, Donald R..
Business research methods.
8th Ed.
Boston:
McGraw Hill,
2003.
Buku.