Sarkar, Kumar Swapan. <br/><br/>
A TEXTBOOK OF DISCRETE MATHEMATICS / 
Swapan Kumar Sarkar. 
 -  9th ED. 
 - New Dehli;  S. Chand Publishing,  2003. 
 - 845 P. ; 
<br/><br/><label>ISBN: </label>
<br/><br/><label>Dewey Class. No.: </label>511  / SAR