Gupta.P.K <br/><br/>
Operations Research 

 - 7 
 - New Delhi  S.Chand  2020 
 - 1498 
<br/><br/><label>ISBN: </label>978-81-219-0281-6 
<br/><br/><label>Dewey Class. No.: </label>658.4034 R20 GUP