J C Aggarwal <br/><br/>
Essentials of educational technology : teaching learning/ 
by J C Aggarwal 
 - New Delhi:  Vikas,  1997. 
 - 463p. 
<br/><br/><label>ISBN: </label>9780706997194 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational Technology<br/>Education<br/>Social Sciences
<br/><br/><label>Dewey Class. No.: </label>371.33  / JCA/E