ගණිතය 

 - The Educational Publications Department  Baththaramulla  2013 
 - 218p  1 
 - 2023-11-15 
<br/><br/><label>Nat. Bib. No.: </label>0004682 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>DEP 
<br/><br/><label>Universal Decimal Class. No.: </label>510