Morgan, K., & Suter, S. (2014). Lessons in teaching number & place value in primary schools. SAGE/Learning Matters.
Chicago-viite (17. p.)Morgan, Kath, ja Stephanie Suter. Lessons in Teaching Number & Place Value in Primary Schools. Los Angeles: SAGE/Learning Matters, 2014.
MLA-viite (9. p.)Morgan, Kath, ja Stephanie Suter. Lessons in Teaching Number & Place Value in Primary Schools. SAGE/Learning Matters, 2014.
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