Chuchʻe Chŏngchʻihak Yŏnʼgu Hakhoe

• Chuchʻe chŏngchʻihak yŏnʼgu
• Sahoejuŭi chŏngchʻi wa tang ŭi yŏngdo
• Sahoejuŭi sahoe yŏnʼgu