Comparative Effectiveness of Some Visual Aids in Seventh-Grade Instruction Joseph J. Weber
| Autor: | Freeman, Frank N. |
|---|---|
| Zdroj: | The Journal of Educational Research, 1923 Feb 01. 7(2), 162-163. |
| Databáze: | JSTOR Journals |
| Externí odkaz: |
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| Autor: | Freeman, Frank N. |
|---|---|
| Zdroj: | The Journal of Educational Research, 1923 Feb 01. 7(2), 162-163. |
| Databáze: | JSTOR Journals |
| Externí odkaz: |
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