Jayawardena,H.V.G.S <br/><br/>
Aththa thiththayi viteka pudumayi - 2 

 - Colombo  S. Godake & Brothers  2006 
 - 224 p ., 
<br/><br/> A Book on Social Scientist research 
<br/><br/><label>ISBN: </label>9552089220 
<br/><br/><label>Dewey Class. No.: </label>294.4  / JAY