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Hyŏn-gon Sŏng

  • Tosi hwan'gyŏng kwa kŏn'gang kwaŭi yŏn'gwansŏng e kwanhan kich'o yŏn'guTosi hwan'gyŏng kwa kŏn'gang kwaŭi yŏn'gwansŏng e kwanhan kich'o yŏn'gu