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Yoo Youngeok | 論文著者
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Yoo Youngeok
College Of Education Taegu University
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YOO Youngeok
College of Education, Taegu University
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YOO Youngeok
Department of Applied Materials Science, College of Engineering, University of Osaka Prefecture
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Yoo Youngeok
Department Of Environmental Education Daegu University
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YOO Youngeok
Department of Environmental Education, Daegu University