Yŏng-il Na

• Mugwa chʻongyo yŏnʾgu
• Chŏngjo sidae ŭi muye
• Chosŏn chunggi muyesŏ yŏnʼgu
• Han'guk ŭi sŭp'och'ŭhak 70-yŏn
• Mugwa chʻongyo yŏnʾgu
• Uri hwalt'ŏ Sŏkhojŏng