Pathirathnna, Sumana  <br/><br/>
SCIENCE  

 - Sarasvi Publisher   Nugegoda   2008 
 - 211p  1 
 - 2024-02-05 
<br/><br/><label>ISBN: </label>978-955-573-794-4 
<br/><br/><label>Nat. Bib. No.: </label>0002669 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>PAT 
<br/><br/><label>Universal Decimal Class. No.: </label>500