Singh, R P & Sapre, S D <br/><br/>
Communication system  analog & digital 

 - 3rd ed 
 - TaTa Mc-Graw Hill, New Delhi  2007 
 - xviii,584 
<br/><br/><label>ISBN: </label>978-0-07-06454-1 
<br/><br/><label>Dewey Class. No.: </label>001.5544 Sin/Sap