横田耕作
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Karatedo Paradigm Shift: https://www.amazon.com/Karatedo-Paradigm-Shift-Rediscovering-Karate-ebook/dp/B07237WRK4/ref=sr_1_fkmrnull_1?keywords=karatedo+paradigm+shift&qid=1551850010&s=gateway&sr=8-1-fkmrnull
Karatedo Quantum Leap:https://www.amazon.com/Karatedo-Quantum-Leap-Advancing-Understanding/dp/0998223638/ref=sr_1_fkmrnull_1?keywords=karate+do+quantum+leap&qid=1551850177&s=gateway&sr=8-1-fkmrnull