Venkataiah, N. D (Editor) <br/><br/>
Educational technology 

 - New Delhi  APH Publishing  1996 
 - xxi,234p. 
<br/><br/><label>ISBN: </label> RS 400.00 
<br/><br/><label>Source: </label> RS 400.00 
<br/><br/><label>Dewey Class. No.: </label>371.3 EDU