අධ්‍යාපනය, අංක 20 
= Adhyapanaya, No. 20 


 -  1989 
 - 88p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>EDUCATION
<br/><br/><label>Dewey Class. No.: </label>370.5  / A23