Gaya APA

Weele, A, J, V. (2002). Purchasing And Supply Chain Management Analysis, Planning and Practice (Third). Polewali Mandar: Pustaa Baru Press.

Gaya MLA

Weele, Arjan, J, Van. "Purchasing And Supply Chain Management Analysis, Planning and Practice". Third Polewali Mandar: Pustaa Baru Press, 2002. Text.