Koul L <br/><br/>
Methodogy of Educational Research 

 - 4 
 -  Vikas Publishing House Pvt Ltd,  Delhi  2010 
 - 532 
<br/><br/><label>ISBN: </label>9788125927969 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology - Other aspects
<br/><br/><label>Dewey Class. No.: </label>159  KOU-M4