A Textbook of discreet mathematics /  
Sarkar Swapan Kumar . 
 - revised ed. 
 - New Delhi;  S.Chand & Company Ltd.  2013. 
 - xii,820 p,: 
<br/><br/><label>ISBN: </label>8121922321 
<br/><br/><label>LC Class. No.: </label>QA76.9  / .M35S2  2013