Gaya APA

Chopra, S., Meindl, P. (2016). Supply chain management : strategy, planning, and operation (6th ed.). Essex: Pearson Education.

Gaya MLA

Chopra, Sunil., Meindl, Peter. "Supply chain management : strategy, planning, and operation". 6th ed. Essex: Pearson Education, 2016. Buku/Printed Material.