Das, Lala Shriniwas <br/><br/>
Pariksha Guru 

 - New Delhi  Vani prakashan  2008 
 - 176p. 
<br/><br/><label>ISBN: </label>978-81-8143-861-4 
<br/><br/><label>Dewey Class. No.: </label>8H3.3-D-P   Das. P8