"Bōsō Chiran-Ki". Kokushi Daijiten (国史大辞典, Large Dictionary of Japanese History). Tokyo: Netto Adobansusha. 2011. Archived from the original on 2007-08-25. Retrieved 2011-11-08.
*"Toki Yoriharu". Nihon Jinmei Daijiten (日本人名大辞典, Large Encyclopedia of Japanese Personages). Tokyo: Netto Adobansusha. 2011. Archived from the original on 2007-08-25. Retrieved 2011-11-08.
*"Takeda Toyonobu". Nihon Jinmei Daijiten (日本人名大辞典, Large Encyclopedia of Japanese Personages). Tokyo: Netto Adobansusha. 2011. Archived from the original on 2007-08-25. Retrieved 2011-11-08.
*"Satomi Yoshiyasu". Kokushi Daijiten (国史大辞典, Large Dictionary of Japanese History). Tokyo: Netto Adobansusha. 2011. Archived from the original on 2007-08-25. Retrieved 2011-11-08.
web.archive.org
"Bōsō Chiran-Ki". Kokushi Daijiten (国史大辞典, Large Dictionary of Japanese History). Tokyo: Netto Adobansusha. 2011. Archived from the original on 2007-08-25. Retrieved 2011-11-08.
*"Toki Yoriharu". Nihon Jinmei Daijiten (日本人名大辞典, Large Encyclopedia of Japanese Personages). Tokyo: Netto Adobansusha. 2011. Archived from the original on 2007-08-25. Retrieved 2011-11-08.
*"Takeda Toyonobu". Nihon Jinmei Daijiten (日本人名大辞典, Large Encyclopedia of Japanese Personages). Tokyo: Netto Adobansusha. 2011. Archived from the original on 2007-08-25. Retrieved 2011-11-08.
*"Satomi Yoshiyasu". Kokushi Daijiten (国史大辞典, Large Dictionary of Japanese History). Tokyo: Netto Adobansusha. 2011. Archived from the original on 2007-08-25. Retrieved 2011-11-08.