Gaya APA

Pratley, P. (1997). The Essence of Business Ethics (Etika Bisnis) (Ed. 1). Yogyakarta: Andi..

Gaya MLA

Pratley, Peter. "The Essence of Business Ethics (Etika Bisnis)". Ed. 1 Yogyakarta: Andi., 1997. Buku Agribisnis.