== Litteratur ==
* Hotta, Anne, and Yoko Ishiguro. ''A Guide to Japanese Hot Springs''. New York: Kodansha America, 1986. {{ISBN|0-87011-720-3}}.
* Fujinami, Kōichi. ''Hot Springs in Japan''. Tokyo: Board of Tourist Industry, [[Japanese Government Railways]]; Maruzen Company, Ltd., 1936.
* Neff, Robert. ''Japan's Hidden Hot Springs''. Rutland, Vermont: Charles E. Tuttle, 1995. {{ISBN|0-8048-1949-1}}.
* Seki, Akihiko, and Elizabeth Heilman Brooke. ''The Japanese Spa: A Guide to Japan's Finest Ryokan and Onsen''. Boston: Tuttle Publishing, 2005. {{ISBN|0-8048-3671-X}}. Genoptrykt som ''Ryokan: Japan's Finest Spas and Inns'', 2007. {{ISBN|0-8048-3839-9}}.
Kultur Vand Sprog