Sharma D.K. <br/><br/>
Viva Voce Electrical Engineering 

 - 4th 
 - New Delhi  CBS Publishers & Distributors  2012 
 - 330p. 
<br/><br/><label>ISBN: </label>9788123908731 
<br/><br/><label>Dewey Class. No.: </label>621.31  / Sha-E