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| 035 | _aUPN01000072391 | ||
| 100 | _aRUTHVEN, Kenneth | ||
| 222 | _aMICROMATH | ||
| 245 | _aDeveloping algebra with the supercalculator | ||
| 300 | _a23-25 | ||
| 362 | _a1993 Vol. 9, no. 1, mar.-jun. | ||
| 653 | 0 | _aALGEBRA | |
| 653 | 0 | _aEAC | |
| 653 | 0 | _aEDUCACION SECUNDARIA | |
| 653 | 0 | _aENSEÑANZA | |
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| 905 | _aArticulo | ||
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