Participants: Yunesŭk'o Han'guk Wiwŏnhoe. [ ]; Han'guk Sahoe Kwahak Yŏn'gu Hyŏbŭihoe. [ ]; Yunesŭk'o Han'guk Wiwŏnhoe. [ TeilnehmendeR ]; Han'guk Sahoe Kwahak Yŏn'gu Hyŏbŭihoe. [ TeilnehmendeR ]
Published: 1983-