Sampath, K.  . <br/><br/>
Introduction to educational technology /  
by K. Sampath, A. Panneerselvam and S. santhanam. 
 - 4th rev ed /  
 - New Delhi :   Sterling Publishers Private Limited ,   1998 
 - 367p :  
<br/><br/><label>ISBN: </label>81-207-1572-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education
<br/><br/><label>Dewey Class. No.: </label>T:3(F)  / N8;1