https://www.syu.ac.kr/grad/%ec%82%bc%ec%9c%a1%eb%8c%80%ed%95%99%ea%b5%90-%eb%aa%a8%eb%b0%94%ec%9d%bc-%ec%95%b1-%ec%88%98%ed%86%a1su-talk-%ec%84%a4%ec%b9%98-%eb%b0%8f-%eb%aa%a8%eb%b0%94%ec%9d%bc-%ed%95%99%ec%83%9d%ec%a6%9d/