Peterson, Larry L. ; Davie, Bruce S.  <br/><br/>
Computer networks : a systems approach  
Larry L. & Bruce S. Davie Peterson. 
 - 5th. ed. 
 - Amsterdam  Elsevier,  2012. 
 - xxxi; 884 p. 
<br/><br/><label>ISBN: </label>8131210456 (paperback) 9788131210451 (paperback) 
<br/><br/><label>Source: </label> 838.00 PKR