^Frédéric, L.; Louis-Frédéric; Roth, K. (2005).
Japan Encyclopedia. Harvard University Press reference library. Belknap Press of Harvard University Press.
ISBN978-0-674-01753-5. Retrieved 2020-11-21.
^Frédéric, L.; Louis-Frédéric; Roth, K. (2005).
Japan Encyclopedia. Harvard University Press reference library. Belknap Press of Harvard University Press.
ISBN978-0-674-01753-5. Retrieved 2020-11-21.