Tiwari, N K <br/><br/>
Operation research 
by N K Tiwari 
 - New Delhi  PHI.Newdehli  2009 
<br/><br/> Engineering 
<br/><br/><label>ISBN: </label>978-81-203-2966-9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Management