ARIYASINGHE .K <br/><br/>
SCIENCE GRADE 6 
AMARATHILAKE KRISHNI 
 - 30 STANLEY THILAKARATNE MAWATHA, NUGEGODA  SARASAVI PUBLISHERS  2007 
 - 80P. 
<br/><br/><label>ISBN: </label>9789555736671 
<br/><br/><label>Dewey Class. No.: </label>500  / ARI