Ananda Samaraveera & Chandra Nishanka <br/><br/>
ත්‍රිකෝණමිතිය  : 

 - S.Godage :  Colombo ;  2020. 
 - 162p  1 
 - 2023-11-15 
<br/><br/><label>ISBN: </label>978-624-00-0762-7 
<br/><br/><label>Nat. Bib. No.: </label>0007851 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>SAM 
<br/><br/><label>Universal Decimal Class. No.: </label>510