Hazarika,Padmalochan. <br/><br/>
A textbook of business mathematics 

 - 2014 rev ed. 
 - New Delhi:  S.Chand. 
 - 644. 
<br/><br/><label>ISBN: </label>978-81-219-2313-2 
<br/><br/><label>Dewey Class. No.: </label> / HAZ