A Study on the Utilization of Open Learning Platform to Reduce Private Education Cost of Elementary Education (초등교육의 사교육비 절감을 위한 개방형 학습 플랫폼 활용에 관한 연구)
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- The Journal of the Institute of Internet, Broadcasting and Communication
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- v.18 no.1
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- pp.105-111
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- 2018