Sŏk-hyŏng Yu

• 21-segi rŭl taebihan kukchŏk sŏndae ŭi sugŭp chŏnmang
• Kukche haeun hyŏmnyŏk hyŏnhwang kwa hyanghu chŏngchʻaek panghyang
• Nam-Pukhan hwamul unsong chʻeje kuchʻuk pangan
• Pukpang chŏngchʻaek kwa haeun sanŏp pumun ŭi taeŭng panghyang
• Taeryuk hoengdan chʻŏlto unsong kwa chŏnggisŏnsa ŭi taeŭng chŏllyak