출처 : http://www.gapea.net/files/filedown.asp?filename=%5B%EB%B6%99%EC%9E%842%5D(%EA%B3%A0%EC%9A%A9%EB%85%B8%EB%8F%99%EB%B6%80)%EC%8B%A0%EC%A2%85%20%EC%BD%94%EB%A1%9C%EB%82%98%EB%B0%94%EC%9D%B4%EB%9F%AC%EC%8A%A4%20%EA%B0%90%EC%97%BC%EC%A6%9D%20%EC%98%88%EB%B0%A9%20%EB%B0%8F%20%ED%99%95%EC%82%B0%EB%B0%A9%EC%A7%80%20%EC%82%AC%EC%97%85%EC%9E%A5%20%EB%8C%80%EC%9D%91%20%EC%A7%80%EC%B9%A8.hwp&fileUrl=board