Jayathilaka, K.M.D.S  <br/><br/>
ත්‍රීකෝණමිතිය 11  

 - Lakva Prakashan   Battaramulla   2007 
 - 212p  1 
 - 2023-11-09 
<br/><br/><label>ISBN: </label>978-955-1605-02-5 
<br/><br/><label>Nat. Bib. No.: </label>0007688 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>JAY 
<br/><br/><label>Universal Decimal Class. No.: </label>511.6