Yŏn-sŭng Kim

• Kwanghae yebang kwa paesang e taehan pŏpche yŏnʼgu =
• Kwangŏppŏp chʻukcho yŏnʼgu
• Kwangŏppŏp pigyo yŏnʼgu
• Kwangsan poanpŏp yŏnʼgu