Lal Das, Dk <br/><br/>
Practice of social research 
by D K  Lal Das  
 - Jaipur  Rawat Pub.  2017 
 - 376 p. 
<br/><br/><label>Source: </label>Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> DK