Sampath, K ... [et al.]. <br/><br/>
Introduction to educational technology 

 - 5th ed. 
 - New Delhi  Sterling  2007 
 - viii,348p.  24 cm. PB 
<br/><br/><label>ISBN: </label>8120731395 
<br/><br/><label>Dewey Class. No.: </label>371.332  / SAM