Ravindran, A. Phillips, Don T. Solberg, James J. <br/><br/>
Operations research  Principles and practice 

 - 2nd 
 - Hoboken  John Wiley & Sons  2006 
 - xviii, 637p. 
<br/><br/><label>ISBN: </label>9788126512560 
<br/><br/><label>Dewey Class. No.: </label>658.4034