Coba jelasin Keluarga dari Tokugawa Iesato dong

Lebra, Sugiyama Takie. Above the Clouds: Status Culture of the Modern Japanese Nobility. University of California Press (1995). ISBN 0-520-07602-8

Sims, Richard. Japanese Political History Since the Meiji Renovation 1868-2000. Palgrave Macmillan. ISBN 0-312-23915-7

Message of condolences by the British government following the death of Tokugawa, June 11, 1940, House of Lords Debates, vol. 116 cc508-9