Yi, Ŭn-gyŏng (Researcher in economics)

• Kŏn'gang yuhae sikp'um e taehan kagyŏk chŏngch'aek ŭi hyokwa
• Koryŏng in'gu koyong i chaejŏng e mich'inŭn yŏnghyang
• Koryŏnghwa wa noin ŭiryobi yŏn'gu