BibliographyContributed “Aikido” – The defunct English version of the Aikikai Newspaper Guillaume ErardMarch 5, 2019
InterviewsStanley Pranin Interview with Swordmaster: Kiyoshi Nakakura, Part 2 by Stanley Pranin Josh GoldApril 25, 2003
InterviewsStanley Pranin Interview with Yukiyoshi Sagawa by Stanley Pranin Josh GoldNovember 18, 2002