1. Ministry of Land, Infrastructure, Transport and Tourism: Comparison of Seasonal Variation of Rainfall (in Japanese) 〈http://www.mlit.go.jp/river/pamphlet_jirei/bousai/saigai/kiroku/suigai/suigai_3-1-1.html〉.
2. River Engineering;Takahasi,1990
3. Technical Committee on the Kinu River Dike, 2016. Report on the investigation of the failure of the Kinu River Dike, Kanto Regional Development Bureau of Ministry of Land, Infrastructure, Transport and Tourism (in Japanese) 〈http://www.ktr.mlit.go.jp/ktr_content/content/000643703.pdf〉.