Gaya APA
Adams, D, M., Maine, E, W. (1998).
Business ethics for the 21st Century .
:
Mayfield Publishing Company.California.
Gaya MLA
Adams, David, M., Maine, Edward, W.
"Business ethics for the 21st Century".
:
Mayfield Publishing Company.California,
1998.
Skripsi, Tesis, Disertasi.