GUPTA P.K <br/><br/>
OPERATIONS RESEARCH 

 - 7TH 
 - NEW DELHI  S.CHAND AND CO  2018 
 - 1498  P.B 
<br/><br/><label>ISBN: </label>9788121902816 
<br/><br/><label>Dewey Class. No.: </label>658.4034  / GUP