Gaya APA
Azwar, S., Wotruba, T, R. (1981).
Sales Management: Concept, Practice, And Cases .
Santa Monica:
Goodyear Publishing Company Inc..
Gaya MLA
Azwar, Saifuddin., Wotruba, Thomas, R..
"Sales Management: Concept, Practice, And Cases".
Santa Monica:
Goodyear Publishing Company Inc.,
1981.
Text.