Khan, Najibul Hasan <br/><br/>
Educational technology 

 - New Delhi  Rajat Publications  2004 
 - xi,228p. 
<br/><br/><label>ISBN: </label> RS 450.00 
<br/><br/><label>Source: </label> RS 450.00 
<br/><br/><label>Dewey Class. No.: </label>371.33 KHA