No-bong Kwak

• Chungguk yŏkdae sŏron
• Han'guk sŏyesa
• Hanʼguk sŏhak charyojip
• So Tong-p'a ŭi sŏye segye
• Sŏron yongŏ sosajŏn
• Sŏye ŭi ŭttŭm kwa pŏgŭm
• Sŏyega yŏlchŏn