Hillier, F. S., & Lieberman, G. J. (2005). Introduction to operations research (8th ed.). McGraw-Hill.

Hillier, Frederick S., and Gerald J. Lieberman. Introduction to Operations Research. 8th ed. New York: McGraw-Hill, 2005.

Hillier, Frederick S., and Gerald J. Lieberman. Introduction to Operations Research. 8th ed. McGraw-Hill, 2005.