Pathak, R P <br/><br/>
Shaikshik prodhyogiki avam kriyatmak anusandhan (Hindi) 

 - New Delhi  Kanishka Publishers, Dis  2012 
 - 228 
<br/><br/><label>ISBN: </label>81-8457-391-6 
<br/><br/><label>Dewey Class. No.: </label>371.3078 P