"Sumanasekara, M." <br/><br/>
ධනාත්මක චින්තන දේශන/ 
M. Sumanasekara 
 - Nugegoda:  "Author,"  2004 
 - 14p. 
<br/><br/><label>Subjects--Index Terms: </label>general knowledge 
<br/><br/><label>Dewey Class. No.: </label>158.15