Hyŏng-su Chang

1960

• Kukche sahoe ŭi kaebal chiwŏn chŏllyak kwa hyŏmnyŏk ch'egye yŏn'gu
• Kukche sahoe ŭi kaebal chiwŏn iron kwa silche
• Kukche sahoe ŭi kaebal chiwŏn iron kwa silche
• Pukhan kyŏngje palchŏn ŭl wihan kukche hyŏmnyŏk ch'egye kuch'uk mit kaebal chiwŏn chŏllyak surip pangan