Kalavathy, S <br/><br/>
Operations research 

 - 4 
 - New Delhi  Vikas Publishing House  2013 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9789325963474 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics<br/>Operations research<br/>Queueing theory