Senadeera, Silvi <br/><br/>
පර්යේෂණ ක්‍රමවේදය 
= paryeshana kramawedaya 


 - Colombo:  Godage,  2004. 
 - xxiv,184p.;  21cm 
<br/><br/><label>ISBN: </label>955-20-7255-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education
<br/><br/><label>Dewey Class. No.: </label>370.78  / SEN