Ravindran A <br/><br/>
Operations research : principles and practice 
Ravindran A And Others 
 - 2 
 - New Delhi  New Delhi, Wiley India  2006 
 - 637p 
<br/><br/><label>ISBN: </label>978-81-265-1256-0 
<br/><br/><label>Source: </label>Textbook