Returns to investment in education a further update
| Egile nagusia: | |
|---|---|
| Beste egile batzuk: | |
| Formatua: | Liburua |
| Hizkuntza: | ingelesa |
| Argitaratua: |
Washington, D.C.
World Bank
2002.
|
| Saila: | Policy research working paper
no.2881 |
| Gaiak: |