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1980
Proceso gráfico en la enseñanza de las operaciones fundamentales con fracciones comunes
Wilbert Amador Castro Rodríguez
1980
Análisis de la enseñanza de las fracciones en la escuela primaria
Lina María del Socorro Montero Flores
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Lina María del Socorro Montero Fl...
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Wilbert Amador Castro Rodríguez