Gaya APA

Cooper, D, R. et al (1999). [Business Research Methods. Bah. Indonesia] Metode Penelitian Bisnis Jilid I (Ed. 5, Cet. 3). Jakarta: Erlangga.

Gaya MLA

Cooper, Donald, R.. et al. "[Business Research Methods. Bah. Indonesia] Metode Penelitian Bisnis Jilid I". Ed. 5, Cet. 3 Jakarta: Erlangga, 1999. Text.