Sommerville, Ian. <br/><br/>
Software engineering / 
Ian Sommerville. 
 - 9th ed. 
 - New Delhi :  Dorling Kindersley,  2011. 
 - xv,773 p. ;  (R 13 SH 4) 
<br/><br/><label>ISBN: </label>8131762165 (paperback) 9788131762165 (paperback) 
<br/><br/><label>Source: </label> Allied Book  PKR 787.50 
<br/><br/><label>Dewey Class. No.: </label>005.1