1)
https://cnu-ac-kr.zoom.us/rec/share/2OVDbG6v-E7MXtr0eLqVrj8zoMW4tEFzBCIvTceYNGQLVOGsjeji0pJYL5eaUxw4.eb0Md5NZVcmggDkp
2)
https://cnu-ac-kr.zoom.us/rec/share/-f5gdMy35xw1okC3cEfeFi9UsnwH8MrH9W8w2TpvZYKOqHcen8X8kGKMz_KHfW-s.FHT9Fn4RxjgGJ2QY