Yi, Yong-jun (Professor)

• Ch'ŏnha myŏngsŭng Kŭmgangsan
• Chʻŏnha myŏngsŭng Kŭmgangsan
• Kŭmgangsan chŏnsŏl
• Kŭmgangsan Hansijip
• Kŭmgangsan kihaengmun
• Kŭmgangsan Kungmun sigasŏn