Singh, L P. <br/><br/>
Digital protection: protective relaying from electromechanical to microprocessor 

 - 2nd edition. 
 - New Delhi :  New Age International,  1994 
 - 272. 
<br/><br/><label>ISBN: </label>8122410537  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Applied physics
<br/><br/><label>Dewey Class. No.: </label>621.38159  / SIN