John Costello. (1991). Teaching and learning mathematics 11-16. London: Routledge.
Trích dẫn kiểu ChicagoJohn Costello. Teaching and Learning Mathematics 11-16. London: Routledge, 1991.
Deismireacht MLAJohn Costello. Teaching and Learning Mathematics 11-16. London: Routledge, 1991.
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