Rosen, K. H. (2007). Discrete mathematics and its applications: With combinatorics and graph theory (6th ed.). Tata McGraw-Hill Higher Education.

Rosen, Kenneth H. Discrete Mathematics and Its Applications: With Combinatorics and Graph Theory. 6th ed. Boston ; New Delhi: Tata McGraw-Hill Higher Education, 2007.

Rosen, Kenneth H. Discrete Mathematics and Its Applications: With Combinatorics and Graph Theory. 6th ed. Tata McGraw-Hill Higher Education, 2007.