Sugiyi Rokurou, et al. Christian Activity During the War Revealed by Special Documents. Volume 2, edited by Institute for the Study of Humanities & Social Sciences, Doshisha Univ., Tokyo-do, Shin-kyo Printing House, 1972.

Sugiyi Rokurou, et al. Christian Activity During the War Revealed by Special Documents. Volume 2, edited by Institute for the Study of Humanities & Social Sciences, Doshisha Univ., Tokyo-do, Shin-kyo Printing House, 1972.