Koul, Lokesh. <br/><br/>
Methodology of educational research. 

 - 3rd ed. 
 - New Delhi :  Vikas,  1984. 
 - xii, 543 p. 
<br/><br/><label>ISBN: </label>0706988533 :  KES 650 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education--Research--Methodology.