Bhatia & Bhatia,  . <br/><br/>
Textbook of Educational Psychology /  

 - Third Ed. /  
 - Delhi-6 :   DOABA House ,   1998 
 - p.404 :  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational psychology
<br/><br/><label>Dewey Class. No.: </label>T:(S)  / M8