Ministry of Education and Higher Education Sri Lanka 

 - Battaramulla :  Ministry of Education,  1997. 
 - 296p.;  29cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mahinda Ranaweera Collection<br/>Education
<br/><br/><label>Dewey Class. No.: </label>379.5493  / MIN