Gaya APA
BALLOU, H, R. (2004).
Business Logistic/ Supply Chain Management (Fifth Edition).
SINGAPORE:
PRENTICE HALL NTERNATIOAL.
Gaya MLA
BALLOU, H., RONALD.
"Business Logistic/ Supply Chain Management".
Fifth Edition
SINGAPORE:
PRENTICE HALL NTERNATIOAL,
2004.
Text.