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URL2: https://www.academia.edu/40169527/%EC%B6%A9%EC%A3%BC%EC%B6%9C%EC%9E%A5%EC%83%B5_%EC%B9%B4%ED%86%A1_YS302_%EC%B6%A9%EC%A3%BC%EC%B6%9C%EC%9E%A5%EC%95%88%EB%A7%88_%EC%97%AC%EB%8C%80%EC%83%9D%EC%95%8C%EB%B0%9424%EC%8B%9C%EC%B6%9C%EC%9E%A5%EB%A7%8C%EB%82%A8_%EC%B6%A9%EC%A3%BC%EC%BD%9C%EA%B1%B8_%EC%B6%94%EC%B2%9C_%EC%B6%A9%EC%A3%BC%EC%B6%9C%EC%9E%A5%EC%95%88%EB%A7%88%EC%B6%94%EC%B2%9C_%EC%B6%A9%EC%A3%BC%EC%B6%9C%EC%9E%A5%EB%A7%88%EC%82%AC%EC%A7%80_%EC%B6%A9%EC%A3%BC%EB%AA%A8%ED%85%94%EC%B6%9C%EC%9E%A5_%EC%B6%A9%EC%A3%BC%EC%A0%84%EC%A7%80%EC%97%AD%EC%B6%9C%EC%9E%A5%EB%A7%9B%EC%82%AC%EC%A7%80_%EC%B6%A9%EC%A3%BC%EC%B6%9C%EC%9E%A5%EC%97%85%EC%86%8C
