Digital data communication 
Edmond Zahedi.  
 - Petaling Jaya  Prentice Hall  2002.  
 - 207p.  ill.  23cm. 
<br/><br/><label>ISBN: </label>9789832473114 983247311X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Digital communications.