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Chang, Wŏn-jun

  • Kukpang yŏn'gu kaebal ch'eje ŭi hwan'gyŏng pyŏnhwa wa palchŏn kwajeKukpang yŏn'gu kaebal ch'eje ŭi hwan'gyŏng pyŏnhwa wa palchŏn kwaje