So-yŏng Yu

• Adong munhak ŏttŏkʻe iyong halkka
• Hakkyo tosŏgwan kwa kyoyuk
• Han'gŭl ŭi moŭm kwa chaŭm
• Uri nara sasŏ ŭi chingmu tʻaedo e kwanhan yŏnʼgu