横田耕作
Shotokan Myths:https://www.amazon.co.jp/Shotokan-Myths-Forbidden-Answers-Mysteries-ebook/dp/B017GG512W/ref=sr_1_1?s=books&ie=UTF8&qid=1492409856&sr=8-1&keywords=shotokan+myths
Shotokan Mysteries: https://www.amazon.co.jp/s/ref=nb_sb_ss_ime_rsis_2_11?__mk_ja_JP=%E3%82%AB%E3%82%BF%E3%82%AB%E3%83%8A&url=search-alias%3Daps&field-keywords=shotokan+mysteries&sprefix=shotokan+my%2Caps%2C157
Shotokan Transcendence: https://www.amazon.co.jp/Shotokan-Transcendence-Stealth-Riddles-Funakoshi-ebook/dp/B00Y1Q9MSU/ref=sr_1_1?