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| 040 | _c | ||
| 082 | _a DPer 510.071 J826 July-November 2021 v. 52 n. 4-5 | ||
| 245 | _aJournal for research in mathematics education / | ||
| 260 |
_aUSA ; _bNational Council of Teachers of Mathematics, _cJuly-November 2021. |
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| 300 |
_aVolume 52, various pages, _billustration, _c23 cm. |
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| 650 | 0 |
_aMathematics teaching & research - _bPeriodicals. _964876 |
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| 942 |
_2ddc _cPER |
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| 999 |
_c23360 _d23360 |
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