Abeyadeera, Nilmini  <br/><br/>
ත්‍රිකෝණමිතිය   

 - Samudra Book Publisher   Colombo   2019 
 - 197p  1 
 - 2023-12-05 
<br/><br/><label>ISBN: </label>978-955-680-846-9 
<br/><br/><label>Nat. Bib. No.: </label>0007877 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>ABE 
<br/><br/><label>Universal Decimal Class. No.: </label>510