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Yŏn-suk Han

  • Kyŏngyŏnghak punya yŏn'guja ŭi chŏngbo iyong haengwi e kwanhan yŏn'guKyŏngyŏnghak punya yŏn'guja ŭi chŏngbo iyong haengwi e kwanhan yŏn'gu