GUPTA,PREM KUMAR <br/><br/>
OPERATION RESEARCH 

 - 1ST 
 - New Delhi  S.CHAND  2018 
 - 1395 
<br/><br/><label>ISBN: </label>9788121902816 
<br/><br/><label>Dewey Class. No.: </label>650  / OPE-G