Aggarwal J C <br/><br/>
Essentials of education psychology 

 - 2 
 - Noida, India  Vikas Publishing House Pvt. Ltd.   2007 
 - 596p. 
<br/><br/><label>ISBN: </label>81-85604-91-6 
<br/><br/><label>Source: </label>TextBook