1st Biennial research symposium on education :  Proceedings 1st NECRS 2022 / 

 - Colombo :  National Education Commission,   2022. 
 - L, 246 p. 
<br/><br/><label>ISBN: </label>9789559448150 
<br/><br/><label>Dewey Class. No.: </label>370.72  / BIE