Gaya APA
Fromm, B. (1991).
The ten commandments of business and how to break them/ Bill Fromm .
New York:
Pustaka Belajar.
Gaya MLA
Fromm, Bill.
"The ten commandments of business and how to break them/ Bill Fromm".
New York:
Pustaka Belajar,
1991.
Text.