^Turnbull, Stephen R. (1998) The Kakure Kirishitan of Japan: A Study of Their Development, Beliefs and Rituals to the Present Day. Richmond, UK: Japan Library. pp. 28–31, 38. ISBN1-873410-70-0
^前田利家 [Maeda Toshiie]. Kotobank. Archived from the original on September 26, 2023. Retrieved September 26, 2023.