EBBY, C. B. H. (2021). A focus on addition and subtraction: : bringing mathematics education research to the classroom. Routledge.
Chicago-viite (17. p.)EBBY, Caroline B. Hulbert. A Focus on Addition and Subtraction: : Bringing Mathematics Education Research to the Classroom. Routledge, 2021.
MLA-viite (9. p.)EBBY, Caroline B. Hulbert. A Focus on Addition and Subtraction: : Bringing Mathematics Education Research to the Classroom. Routledge, 2021.
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