https://www.syu.ac.kr/grad/%ed%95%9c%ea%b5%ad%ec%9e%a5%ec%95%a0%ec%9d%b8%ea%b0%9c%eb%b0%9c%ec%9b%90-%ec%a0%9c3%ed%9a%8c-%ec%9e%a5%ec%95%a0%ec%9d%b8%ec%82%b6-%ed%8c%a8%eb%84%90%ec%a1%b0%ec%82%ac-%ed%95%99%ec%88%a0%eb%8c%80/%ec%ba%a1%ec%b2%98-6/