Ãâó : http://s-space.snu.ac.kr/bitstream/10371/88831/3/5.%20%ec%9d%b4%eb%af%b8%ec%a7%80%ec%9d%98%20%ec%8b%9c%ea%b0%84%ec%84%b1%20%eb%b0%94%eb%a5%b4%ed%8a%b8%ec%99%80%20%eb%93%a4%eb%a2%b0%ec%a6%88%ec%9d%98%20%ec%9d%b4%eb%af%b8%ec%a7%80%eb%a1%a0%ec%9d%84%20%ec%a4%91%ec%8b%ac%ec%9c%bc%eb%a1%9c%20%ec%82%b4%ed%8e%b4%eb%b3%b8%20%ec%9d%b4%ec%b0%bd%eb%8f%99%ec%9d%98%20%eb%b0%95%ed%95%98%ec%82%ac%ed%83%95%2c%20%ec%8b%ac%ec%9d%80%ec%a7%84%20%28%20Eun%20Jin%20Shim%20%29.pdf