Nihon Karate Do Shotokai: http://www.shotokai.jp/english/index.html
Scuola Shotokai Italia: http://www.shotokai.net/
Zen Karate-Do Shotokai - Associação: http://www.zks-a.pt/
Associação Shotokai de Portugal: http://www.shotokai.pt/index.html