Yong-sik Yi

1965

• Chiyŏk sŭpʻochʻŭ kʻŭllŏp chŏngchʻak ŭl wihan hwanʼgyŏng chŏngbi pangan
• Chŏnmun sŭpʻochʻŭ taehagwŏn taehak sŏllip tʻadangsŏng kŏmtʻo