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Cho, Han Hyuk; Kim, Suh-Ryung; Han, Hyuk; Jin, Manyoung; Kim, Hwakyung; Song, Minho
SNU Journal of Education Research, Vol.13, pp. 133-147
Cho, Han Hyuk; Song, Minho; Kim, Hwa Kyung
SNU Journal of Education Research, Vol.15, pp. 129-140