Gupta , S.P. <br/><br/>
Sankhayki ke Sindhant 

 - New Delhi  Sultan Chand & Sons  2001 
 - 1.1;14.64p. 
<br/><br/><label>ISBN: </label>81-7014-246-60 
<br/><br/><label>Dewey Class. No.: </label>519.5   Gup.P1