Hillier, F. S., & Lieberman, G. J. (2005). Introduction to operations research: Concepts and cases (8th ed.). McGraw-Hill Higher Education ; Tata McGraw-Hill.

Hillier, Frederick S., and Gerald J. Lieberman. Introduction to Operations Research: Concepts and Cases. 8th ed. Boston : New Delhi: McGraw-Hill Higher Education ; Tata McGraw-Hill, 2005.

Hillier, Frederick S., and Gerald J. Lieberman. Introduction to Operations Research: Concepts and Cases. 8th ed. McGraw-Hill Higher Education ; Tata McGraw-Hill, 2005.