Vithanapathirana, M. V <br/><br/>
Sri Lanka Journal of Educational Research, Vol. 6, No. 1, 1997 

 - Maharagama  National Institute of Education  1997 
 - [6],122 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>EDUCATIONAL RESEARCH<br/>NATIONAL EDUCATION<br/>PAMPHLET BOX 187