https://www.syu.ac.kr/grad/e%ec%bb%a8%ec%8a%88%eb%a8%b8-2021%eb%85%84-%eb%8c%80%ed%95%99%ec%9b%90%ec%83%9d-%ec%96%91%ec%9e%90%ec%95%94%ed%98%b8%ed%86%b5%ec%8b%a0-%ec%95%84%ec%9d%b4%eb%94%94%ec%96%b4-%ea%b3%b5%eb%aa%a8/211109_%ec%96%91%ec%9e%90%ec%95%94%ed%98%b8%ed%86%b5%ec%8b%a0%ec%95%84%ec%9d%b4%eb%94%94%ec%96%b4%ea%b3%b5%eb%aa%a8%ec%a0%84%ed%8f%ac%ec%8a%a4%ed%84%b0-2/