SSŏbisŭ sanŏmnonSŏbisŭ sanŏmnonde Chŏng-hwan O, Chong-suk Kang, Chʻang-yong HaMateriasService industriesEdiciones (1)Sŏbisŭ sanŏmnon (1986)Myŏngbo Chʻulpʻansa · korMás obras de Chŏng-hwan OKKwanʼgwang saŏp kaeronKwanʼgwang saŏp kaeronSSe pŏn ŭi hyŏngmyŏng kwa Yi Sŭng-manSe pŏn ŭi hyŏngmyŏng kwa Yi Sŭng-manVer todas las obras de Chŏng-hwan O →