"Ojha, D. D.; Satyaprakash" <br/><br/>
Doorsanchar evam soochna praudyogiki 

 - Delhi  Gyan Ganga  2007 
 - 198p. 
<br/><br/><label>ISBN: </label>8188139025 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communication
<br/><br/><label>Dewey Class. No.: </label>H 621.38 OJH