SONI R S <br/><br/>
ESSENTIAL BUSINESS MATHEMATICS & BUSINESS STATISTICS 

 - 1st 
 - 4821, Parwana Bhawan  Ane books, New Delhi   2009 
<br/><br/><label>ISBN: </label>978-81-8052-157-7 
<br/><br/><label>Dewey Class. No.: </label>650.015 13  / SON/E