| www.seibukan.ca | Seibukan Canada web-site |
| www.seishinkan.dk | Seibukan Denmark web-site |
| www.gojuryu.net | Sito con informazioni sul Goju-ryu |
| www.yoshinkan-aikido.org | International Yoshinkai Aikido Federation |
| www.yoshinkan.net | Official Yoshinkan Honbu-dojo web-site |
| www.furyu.com/archives/ issue2/Muso.html |
Breve storia e descrizione del Shindo-muso- ryu jodo |
