Gaya APA

Ong, E., Heong, T, K. (2006). Principles of Supply Chain Management : A Journey to Discover What SCM Is All About . SINGAPORE: McGraw-Hill, Inc..

Gaya MLA

Ong, Eddie., Heong, Tang, Kah. "Principles of Supply Chain Management : A Journey to Discover What SCM Is All About". SINGAPORE: McGraw-Hill, Inc., 2006. .