Gaya APA

Pratley, P. (1997). The essence of business ethics etika bisnis (Ed. 1, Cet. 1). Yogyakarta: Andi.

Gaya MLA

Pratley, Peter. "The essence of business ethics etika bisnis". Ed. 1, Cet. 1 Yogyakarta: Andi, 1997. Text.