NCERT <br/><br/>
Manovigyan : kaksha 12 ke liye pathypustak (Hindi) 

 - New Delhi  NCERT  2009 
 - x, 220 
<br/><br/><label>ISBN: </label>81-7450-749-3 
<br/><br/><label>Dewey Class. No.: </label>150 RS:M,C