000 00581nam a2200205 a 4500
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008 991125n 000 0 spa u
035 _aUPN01000102233
100 1 _aCarnine, Douglas
222 _aJOURNAL RESEARCH MATHEMATICS EDUCATION
245 _aThe Nature and Roles of Research in Improving Achievement in Mathematics
300 _a138-143
362 0 _a2000 Vol. 31, no. 2
653 0 _aEDUCACION MATEMATICA
653 0 _aINVESTIGACION
700 1 _aGersten, Russell,
700 1 _ecoaut.
904 _aAC
_b040044
905 _aArticulo
999 _c78078
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