Sŏng-jun Chʻoe
1917
Hanʼguk ŭi pʻyŏnghwa tʻongil wŏnchʻik i sirhyŏn toeŏssŭl ttae yesang toenŭn yŏrŏ kukche chŏngchʻi munje e kwanhan yŏnʼgu- Yusin sasang ŭi chŏngchʻijŏk punsŏk kwa Hanʼguk kyoyuk palchŏn kwa ŭi yŏnʼgwansŏng e kwanhan yŏnʼgu
- Yusin sasang ŭi chŏngchʻijŏk punsŏk kwa Hanʼguk kyoyuk palchŏn kwaŭi yŏnʼgwansŏng e kwanhan yŏnʼgu