Kothari, C R <br/><br/>
Introduction to operational research 

 - 3rd ed. 
 - New Delhi  Vikas Publishing House  1997 
 - xv, 522 p. 
<br/><br/><label>ISBN: </label> RS295 
<br/><br/><label>Dewey Class. No.: </label>658.4034 K849I