Sampath, K. <br/><br/>
Introduction to educational technology / 

 - 3 Rev Sub ed. 
 - [S.l.] :  Stosius Inc/Advent Books Division,  1990 
<br/><br/><label>ISBN: </label>8120709721 (hardcover) | 9788120709720 (hardcover) 
<br/><br/><label>Dewey Class. No.: </label>371.3 SAM