- British Combat Karate Association (UK)
- International Shotokan Karate Federation (Italy)
- Kuniba Kai (Japan)
- Kuniba Kai -Italy
- Shobu-Kan Association (Okinawa-Japan)
- Hanshi Jamal Measara
- Bas Rutten Official Website
- Hawai Karate Museum
- Shureido
- Brunel University Judo Club
- Tozando – Japan martial arts shop
- Nine Circles supplier of traditional Japanese Budo equipment
Matsumura Kai 