TY  - BOOK
AU  - Mittal, Harish.
AU  - Goyal, Vinay Kumar.
AU  - Goyal, Deepak Kumar.
TI  - Textbook of discrete mathematics
SN  - 9789380026763
U1  - 511.8  1
PY  - 2012///
CY  - New Delhi
PB  - I K International Publishing House Pvt Ltd
KW  - Relation and functions
KW  - Techniques of counting
ER  -