O, In-tʻak. · 4 obras en el catálogoObrasHHanʼguk hyŏndae kyoyuk chʻŏrhak kwa kyoyuk sahak ŭi chŏnʼgaeHanʼguk hyŏndae kyoyuk chʻŏrhak kwa kyoyuk sahak ŭi chŏnʼgaeHHanʼguk Kidokkyo kyoyukhak munhŏn mongnok, 1945-1980Hanʼguk Kidokkyo kyoyukhak munhŏn mongnok, 1945-1980HHanʼguk Kidokkyo kyoyukhak munhŏn mongnok, 1945-2005Hanʼguk Kidokkyo kyoyukhak munhŏn mongnok, 1945-2005KKyohoe kyosa kyoyuk ŭi hyŏnsil kwa panghyangKyohoe kyosa kyoyuk ŭi hyŏnsil kwa panghyang
HHanʼguk hyŏndae kyoyuk chʻŏrhak kwa kyoyuk sahak ŭi chŏnʼgaeHanʼguk hyŏndae kyoyuk chʻŏrhak kwa kyoyuk sahak ŭi chŏnʼgae
HHanʼguk Kidokkyo kyoyukhak munhŏn mongnok, 1945-1980Hanʼguk Kidokkyo kyoyukhak munhŏn mongnok, 1945-1980
HHanʼguk Kidokkyo kyoyukhak munhŏn mongnok, 1945-2005Hanʼguk Kidokkyo kyoyukhak munhŏn mongnok, 1945-2005