Sharma, Sanjay. <br/><br/>
Principles of communication systems / 
Sanjay Sharma 
 - [Place of publication not identifed] :  [publisher not identified],  c2011 
<br/><br/> Principles of communication systems, Principles 
<br/><br/><label>ISBN: </label>9789350141007 
<br/><br/><label>LC Class. No.: </label>TK 5101 .S53 [2011]