Amarasekara, D <br/><br/>
Samaja viddyawa :  saralashastriya lipi 

 - Varakapola  Ariya Publishers  1995 
 - 168 p ., 
<br/><br/> Books on Social Science 
<br/><br/><label>ISBN: </label>9555530785 
<br/><br/><label>Dewey Class. No.: </label>300  / AMA