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S. Kawakami
Faculty of Education, Gifu University
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B. Tojo
Faculty of Education, Gifu University
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A. Fujita
Faculty of Education, Gifu University
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Y. Ueda
Faculty of Education, Gifu University
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M. Katada
Fuzoku Elementary School attached to Faculty of Education, Gifu University
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M. Inoue
Yamaguchi Elementary School, Nakatsugawa City