Wickramaratne, P.P.K. <br/><br/>
Pasvana sreniye egenuma labana sisun atarin basamaya danima pilibanda durvala sisun 29 deneku tora ovunta manovidyanukulavsakas kala padam magin visesa denumak labadi ovun vasara avasanaye labagath .. 

 - Colombo  University of Colombo  1978 
 - 225p. 
<br/><br/>
<br/><br/><label>Subjects--Topical Terms: </label><br/>EDUCATION SPECIAL<br/>M142
<br/><br/><label>Dewey Class. No.: </label>371.9  / W31