Desu Kappa デスカッパ [Death Kappa]. Dir. Tomoo Haraguchi 原口智生. Tokyo Shock, 2010. Film.
Foster, Michael Dylan. “The Metamorphosis of the Kappa: Transformation of Folklore to Folklorism in Japan.” Asian Folklore Studies, vol. 57, no. 1, 1998, pp. 1–24. JSTOR, JSTOR, www.jstor.org/stable/1178994.
Foster, Michael Dylan and Shinonome Kijin. The Book of Yōkai: Mysterious Creatures of Japanese Folklore. University of California Press, 2015.
Onna no Kappa 女の河童 -UNDERWATER LOVE- [Underwater Love]. Dir. Shinji Imaoka 今岡信治. Rapid Eye Movies, 2011. Film.
Papp, Zília. “Monsters at War: The Great Yōkai Wars, 1968–2005.” Mechademia, vol. 4, 2009, pp. 225-239. Project MUSE, doi:10.1353/mec.0.0073
Schumacher, Mark. “Kappa - River Imp (Kami) in Japanese Shinto and Buddhist Traditions.” GODS of Japan, A-to-Z Photo Dictionary of Japanese Buddhist and Shinto Deities, Mark Schumacher, 22 Aug. 2013, www.onmarkproductions.com/html/kappa.shtml.