gupta,s.p and Gupta p.k <br/><br/>
Business statistics and business mathematics 

 - NewDelhi  Sultan Chand & Sons  2009 
 - BM-Q 4 
<br/><br/><label>ISBN: </label>978-81-8054-605 
<br/><br/><label>Dewey Class. No.: </label>519 5   Gup P9