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| 035 | _aUPN01000082047 | ||
| 100 | 1 | _aVan den Heuvel Panhuizen, Marja | |
| 222 | _aEDUCATIONAL STUDIES IN MATHEMATICS | ||
| 245 | _aImprovement of didactical assessment by improvement of problems : an attempt with respect to porcentage | ||
| 300 | _a342-372 | ||
| 362 | 0 | _a1994 Vol. 27, no. 4, dec. | |
| 653 | 0 | _aAPRENDIZAJE | |
| 653 | 0 | _aENSEÑANZA | |
| 653 | 0 | _aMATEMATICA | |
| 904 |
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| 905 | _aArticulo | ||
| 999 |
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