සමාජ සංවර්ධනය 
= Samaja Sanwardhanaya 


 - Colombo:  national Social Development Publication,  1999. 
 - 82 p.;  24 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>social science
<br/><br/><label>Dewey Class. No.: </label>304.5  / SAM