Forouzan, Behrouz A <br/><br/>
Data communication and networking.-5th ed. 

 - McGraw Hill Education Pvt. Ltd.  Chennai  2013 
 - xxxvii,1226 
<br/><br/>
<br/><br/><br/>E 
<br/><br/><label>Universal Decimal Class. No.: </label>001.64404