Chiiki shakaihen, guntai to chiiki shakai o touHirofumi Hayashi, Keiichi Harada, Kazushige Yamamoto · First published 2015Open the Tome
"Shakai" no hakken to hen'yōKyŏng-dal Cho, Keiichi Harada, Yūjirō Murata, Tsuneo Yasuda · First published 2013Open the Tome
Bunmei to dentō shakaiKyŏng-dal Cho, Keiichi Harada, Yūjirō Murata, Tsuneo Yasuda · First published 2013Open the Tome
Kindai kokka no keiseiKyŏng-dal Cho, Keiichi Harada, Yūjirō Murata, Tsuneo Yasuda · First published 2013Open the Tome
Shokuminchi Chōsen no nichijō o tōCh'ŏr-ho Han, Keiichi Harada, Osamu Ōta · First published 2012Open the Tome
