Hang-gu Yi

1935

• Hyŏndae kwanʼgwanghak
• Hyŏndae kwanʼgwanghak chʻongnon =
• Kwanʼgwang chinhŭngpŏp kaeron
• Kwanʼgwang pŏmnihak nonchʻong
• Kwanʼgwanghak sŏsŏl
• Kwanʼgwangpŏp chʻongnon
• Kwanʼgwangpŏp kaeron