Papinot, Jacques Edmond Joseph. (1906). Dictionnaire d'histoire et de géographie du Japon; Papinot, (2003). 4 Nisan 2016 tarihinde Wayback Machine sitesinde [https://web.archive.org/web/20160404185103/http://www.unterstein.net/Toyoashihara-no-Chiaki-Nagaioaki-no-Mitsuho-no-Kuni/NobiliaireJapon.pdf arşivlendi. "Asakura", Nobiliare du Japon, p. 3 [PDF 7 of 80]]; 30 Kasım 2020 tarihinde erişilmiştir.
