Jha Avadesh  <br/><br/>
ShaikshaNik Sanshodhan (Educational Research) 

 - Rajkot:  Ravi Prakashan and Co. ,  2010. 
 - 576. 
<br/><br/><label>ISBN: </label>0 
<br/><br/><label>Dewey Class. No.: </label>370.78  / JHA