A Dictionary of Japanese History by Joseph M. GoedertierGino K. PiovesanaMN 24:1/2 (1969) pp. 192–93 → jstor.org/stable/2383772ShareThe Japanese Imperial Institution in the Tokugawa Period by Herschel WebbKindai Nihon shigaku-shi no kenkyū. Meiji hen (Studies on the Development of Modern Historical Science in Japan: Meiji Period) by Ozawa Eiichi