English and the vernacular as media in teaching arithmetic in the elementary grades. IN Soberano, Editha Mulata [column]
| Argitaratua izan da: | Education Quarterly Vol. 17, no. 3-4 (1970), p. 48-57 |
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| Egile nagusia: | |
| Formatua: | Artikulua |
| Argitaratua: |
1970
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