Hirimburegama, W. K <br/><br/>
Science in Sri Lanka, Vol. 3, No. 3, November 2002 

 - Colombo  Sri Lanka Association for the Advancement of Science  2002 
 - 56 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PAMPHLET BOX 114<br/>SCIENCE