Gupta, S.P. <br/><br/>
Sankhyaki kai sidhant 

 - Delhi  Sultan Chand & sons  2007 
 - 1.710;A.11A260;1.42; 
<br/><br/><label>ISBN: </label>81 8054523 7 
<br/><br/><label>Dewey Class. No.: </label>519.5H    Gup.P7