HHanʻguk TogyosaHanʻguk Togyosade Nŭng-hwa YiMateriasTaoismHistoryEdiciones (1)Hanʻguk Togyosa (1959)Tongguk Taehakkyo · korMás obras de Nŭng-hwa YiCChosŏn chonggyosaChosŏn chonggyosaCChosŏn haeŏhwa saChosŏn haeŏhwa saCChosŏn musŏkkoChosŏn musŏkko