Ballou, R. H. (2004). Business logistics/supply chain management: Planning, organizing, and controlling the supply chain (5th ed.). Pearson/Prentice Hall.

Ballou, Ronald H. Business Logistics/supply Chain Management: Planning, Organizing, and Controlling the Supply Chain. 5th ed. Upper Saddle River, N.J.: Pearson/Prentice Hall, 2004.

Ballou, Ronald H. Business Logistics/supply Chain Management: Planning, Organizing, and Controlling the Supply Chain. 5th ed. Pearson/Prentice Hall, 2004.