Arora,P. N. <br/><br/>
Quantitative Aptitude Mathematics 

 - New Delhi:  S Chand & Co,  2007 
 - unpage (Rk#6.a Sh#01). 
<br/><br/><label>ISBN: </label>8121928478 
<br/><br/><label>Source: </label> Punjab Book   PKR 607.95 
<br/><br/><label>Dewey Class. No.: </label>510