Ellis, Robert Richmond (2003). "'The Best Thus Far Discovered': The Japanese in the Letters of Francisco Xavier". Hispanic Review. 71 (2): 155–169. doi:10.2307/3247185. ISSN0018-2176. JSTOR3247185.
Ellis, Robert Richmond (2003). "'The Best Thus Far Discovered': The Japanese in the Letters of Francisco Xavier". Hispanic Review. 71 (2): 155–169. doi:10.2307/3247185. ISSN0018-2176. JSTOR3247185.
Ellis, Robert Richmond. “The Best Thus Far Discovered”: The Japanese in the Letters of St. Francisco Xavier. Hispanic Review, Vol. 71 No. 2 (Spring 2003), pp. 155-169 University of Pennsylvania Press. 30 November 2008 jstor
Elison, George (1973). Deus Destroyed; The Image of Christianity in Early Modern Japan. Harvard University Press. pp. 54 and 64. ISBN978-0-674-19962-0. JSTORj.ctt1tg5jpg.
Ellis, Robert Richmond (2003). "'The Best Thus Far Discovered': The Japanese in the Letters of Francisco Xavier". Hispanic Review. 71 (2): 155–169. doi:10.2307/3247185. ISSN0018-2176. JSTOR3247185.