The Change in Perceptions of Category for Environmental Education and Environmental Education Professionalism of Teachers Participating in a In-service Teacher Training Program for Environmental Education (환경교육 연수에 참여한 교사들의 환경교육 범주에 대한 인식과 환경교육 전문성 함양의 변화 분석)
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- Hwankyungkyoyuk
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- v.22 no.3
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- pp.136-151
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- 2009