Muchʻŏn Kŭk Yesul Hakhoe (Korea)

• Chʻa Pŏm-sŏk hŭigok yŏnʾgu
• Pak Cho-yŏl hŭigok yŏnʾgu
• Pak Hyŏn-suk hŭigok yŏnʼgu