Gupta s p & Gupta  PK <br/><br/>
Business statistcs & Business mathematics 

 -  Sultan chand & sons  2009 
 - bs-1-1- to 10.7  BM 
<br/><br/><label>ISBN: </label>978-81-8054-605-1 
<br/><br/><label>Dewey Class. No.: </label>650.015   Gup.P9