Upadhyay, A K. <br/><br/>
Sankhy siddhantta /  
NULL. 
 - /   . 
 - Delhi :   Nag publishers ,   2006. 
 - NULL :   figure ;   NULL  1 CD .  
<br/><br/>NULL 
<br/><br/><label>ISBN: </label> RS95.00 (HB)