Ãâó : http://cer.knue.ac.kr/nvboard/filedown.jsp?bodcode=cer_teacher_edu&filename=19-2%20%EA%B3%A0%EB%93%B1%ED%95%99%EA%B5%90%20%EC%82%AC%ED%9A%8C(%EC%A7%80%EB%A6%AC%EC%98%81%EC%97%AD)%EA%B5%90%EA%B3%BC%EC%84%9C%EC%99%80%20%ED%95%9C%EA%B5%AD%EC%A7%80%EB%A6%AC%EA%B5%90%EA%B3%BC%EC%84%9C%EC%9D%98%20%EB%B9%84%EA%B5%90%20%EB%B6%84%EC%84%9D.pdf&maskname=11381815866413