“Why Was Benjamin Franklin’s Basement Filled With Skeletons?,” Smithsonian.com, October 2013, https://www.smithsonianmag.com/smart-news/why-was-benjamin-franklins-basement-filled-with-skeletons-524521.
Jennifer Mitchelhill, Castles of the Samurai: Power and Beauty (Kodansha International, 2003).
Himeji Rojyo Lions Club, Himeji Castle Guide Book (2001), https://web.archive.org/web/20110710161456/http://www.e-somen.com/castle/subdata/print/engdata.pdf.
“Himeji Castle (White Heron Castle) – Feudal Architecture,” Terra Firma Tourist, June 2014, http://www.terrafirmatourist.com/himeji-castle-white-heron-castle-feudal-architecture.
“Himeji Castle,” Manabi Japan, date unknown, https://manabi-japan.jp/en/world-heritage/20180305_1209.
"Japanese Ghost Stories: Himeji Castle and Okiku’s Well,” The Willow Web, June 2017, https://thewillowweb.com/2017/06/21/japanese-ghost-stories-himeji-castle-okiku-well.