Chŏng-uk Yi

• Segye wŏnyu susong sijang ŭi hwanʼgyŏng pyŏnhwa wa hyanghu chŏnmang
• Sŏnbak kwalliŏp ŭi palchŏn panghyang
• T'amsaek, p'yohyŏn, kamsang ŭi t'onghapchŏk yua misul kyoyuk