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Kim Jaeung 김재웅. Pukhan cheje ŭi kiwŏn: inmin wi ŭi kyegŭp, kyegŭp wi ŭi kukka 북한 체제의 기원 – 인민 위의 계급, 계급 위의 국가 [The origin of North Korea’s class structure: Class above people, state above class]. Koyangsi, Kyŏnggido, South Korea: Yŏksa Pip’yŏngsa, 2018. 583 pp. ISBN: 978897696139694910.