singithi muthu 1  S 

 - Colombo  M.D.Gunasena  1989 
<br/><br/><label>ISBN: </label>955-21-0437-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Primary Education
<br/><br/><label>Dewey Class. No.: </label>372.7