Integrated science in the junior secondary school in Sri Lanka.
| Auteur principal: | |
|---|---|
| Collectivités auteurs: | , |
| Format: | Livre |
| Langue: | English |
| Publié: |
Paris
Unesco Press
c1976.
|
| Collection: | Experiments and innovations in education : Asian series
no.27 |
| Sujets: |