Nihon Kobudo Association http://www.nihonkobudokyoukai.org/martialarts/017/
Japan Kobudo Promotion Society http://kobushin.jp/ryuha/
Takenouchi-ryu Sodenke Official Homepage https://www.takenouchi-ryu.com/
Soke introduction webpage by disciple http://www.geocities.jp/takenouchi_niimi/