Gaya APA
Velasquez, M, G. (1998).
Business ethics: Concepts and cases, 4th ed. Cet.I 1982 .
Neww Jersey:
Neww Jersey Prentice Hall.
Gaya MLA
Velasquez, Manuel, G..
"Business ethics: Concepts and cases, 4th ed. Cet.I 1982 ".
Neww Jersey:
Neww Jersey Prentice Hall,
1998.
Buku.