Sŏk-hong O

• Chojikhak ŭi chuyo iron
• Chŏngchʻaekhak ui chuyo iron
• Chŏnhwan sidae ŭi Hanʾguk haengjŏng
• Haengjŏng kaehyŏk silch'ŏnnon
• Haengjŏnghak ŭi chuyo iron
• Han'guk ŭi haengjŏng
• Hanʼguk ŭi haengjŏng
• Insa haengjŏngnon
• Sinpʻan haengjŏnghak
• T'ongch'i hagi ŏryŏun nara