National Council of Teachers of Mathematics, Coxford, A. F., & Webb, N. (1993). Assessment in the mathematics classroom. National Council of Teachers of Mathematics.
Lua i Stíl Chicago (17ú heag.)National Council of Teachers of Mathematics, Arthur F. Coxford, agus Norman Webb. Assessment in the Mathematics Classroom. Reston, Va: National Council of Teachers of Mathematics, 1993.
Lua MLA (9ú heag.)National Council of Teachers of Mathematics, et al. Assessment in the Mathematics Classroom. National Council of Teachers of Mathematics, 1993.
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