개정판맞으신지아니시면답다시주세요 http://file.et-house.com/books/answer/%EC%A7%80%EC%A1%B4%EA%B8%B0%EB%B3%B81%ED%8E%B8%EC%A0%95%EB%8B%B5.pdf
당신은 어느 그룹입니까?