Mu-song Chʻae

• Tʻoe-Yul sŏngnihak ŭi pigyo yŏnʼgu
• Tʻoegye, Yulgok chʻŏrhak ŭi pigyo yŏnʼgu
• Tʻoegye, Yulgok chʻŏrhak ŭi pigyo yŏnʾgu