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Issue Date
Title
Author(s)
1990
La división en 4o. grado de educación primaria: ¿problema de enseñanza o problema de aprendizaje?
Aurora Zepeda Regalado
;
Berta Alicia Quintero García
;
Jovita Hernández Zaragoza
;
María Luisa Martínez Franco
;
Marta Elvira Quintero García
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Author
1
Berta Alicia Quintero García
1
Jovita Hernández Zaragoza
1
Marta Elvira Quintero García
1
María Luisa Martínez Franco
Date issued
1
1990