Sinha, H. S. <br/><br/>
Shiksha manovigyan 

 - New Delhi  Atlantic Pub.  1994 
 - 545p. 
<br/><br/><label>ISBN: </label>81-7156-603-0 
<br/><br/><label>Dewey Class. No.: </label>370.15H    Sin.P4