Ruwanpura, Thilak <br/><br/>
9,10,11 ශ්‍රේණි සදහා මිණිතය    
= minithaya 9,10,11 shreni sadaha 


 - Colombo :  Sadeepa book shop,  1999. 
 - 103p.;  23cm 
<br/><br/><label>ISBN: </label>995-9374-51-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>510  / RUW