Ariyadasa, K. D. <br/><br/>
In-service training of teachers in Sri Lanka / 
by K.D. Ariyadasa 
 - Paris :  Unesco,  1976 
 - 56 p. :  ill. ;  21 cm. 
 - Experiments and innovations in education  no. 23 .
<br/><br/><label>ISBN: </label>9231013475 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Teachers--In--service training--Sri Lanka