De soysa, Priyanga <br/><br/>
අධිවේගී ඉගෙනුම 
= adhiveegi iganuma 


 - Kotte:  Author,  2001. 
 - 163p.;  22 cm. 
<br/><br/><label>ISBN: </label>9559699806 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education Psychology
<br/><br/><label>Dewey Class. No.: </label>370.15  / DES