Amarasekara, D <br/><br/>
Samaja viddyawa :  siddantha ha vidikkrama 

 - 3rd 
 - Varakapola  Arya Publishers  1994 
 - 178 p ., 
<br/><br/> A book on Social Science 
<br/><br/><label>ISBN: </label>9555530629 
<br/><br/><label>Dewey Class. No.: </label>300.1  / AMA