https://en.wikipedia.org/wiki/Sh%C5%ABsaku_End%C5%8D
https://www.amazon.com/-/zh_TW/Shusaku-Endo/dp/081121320X/ref=sr_1_1?crid=2QENWMVU2EL13&keywords=Deep+river.+Shusaku+endo&qid=1662810162&s=books&sprefix=deep+river.+shusaku+endo%2Cstripbooks-intl-ship%2C330&sr=1-1 (Deep River, 1995) (accessible via Scribd documents)