TTasan ŭi kyŏnghak segyeTasan ŭi kyŏnghak segyede Yag-yong ChŏngMateriasChinese classicsHistory and criticismKnowledgeKnowledge and learningEdiciones (1)Tasan ŭi kyŏnghak segye (2002)Hanʾgilsa · korMás obras de Yag-yong ChŏngAAŏn kakpiAŏn kakpiCChŏngchʻejŏn chungbyŏnChŏngchʻejŏn chungbyŏnCChŏng Yag-yongChŏng Yag-yong