Ãâó : http://bk21plus.knu.ac.kr/board/downLoad.php?filePath=../fileStore/boardfile/formula/290&fileName=04_%C5%F0%C1%F7%B0%FC%B7%C3%BC%AD%BD%C4(%BB%E7%C1%F7%BF%F8,%20%B0%A2%BC%AD,%20%BA%F1%C0%A7%BB%E7%BD%C7%C8%AE%C0%CE%BC%AD,%20%B5%B5%BC%AD%B9%DD%B3%B3%C8%AE%C0%CE%C1%F5).hwp