"FAQ". International Martial Arts Federation (IMAF).
jikishinkageryu.eu
Tamio, Nakamura (3 January 2007). "The History of Bogu". Jikishin Kage-ryu Kenjutsu. Published with the permission of Kendo World. Archived from the original on 18 February 2020. Retrieved 23 August 2020.
Tamio, Nakamura (3 January 2007). "The History of Bogu". Jikishin Kage-ryu Kenjutsu. Published with the permission of Kendo World. Archived from the original on 18 February 2020. Retrieved 23 August 2020.