DE ZOYSA   Preyanga  <br/><br/>
Thama Balaya : The new technology of personal development 

 -  Colombo :Brilium  2004 
 - 298 p. 
<br/><br/><label>ISBN: </label>0009558678058 
<br/><br/><label>Dewey Class. No.: </label>150  / D29