Items where Author is "Sumarto, Sylvana Novilia"
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Sumarto, Sylvana Novilia and Galen, Frans Van and Zulkardi, Zulkardi (2014) Proportional Reasoning: How do the 4th Graders Use Their Intuitive Understanding? IES International Education Studies; Vol. 7, No. 1; 2014, 7 (1). pp. 69-80.