Cynarski, Wojciech Jan, and John Arthur Johnson. “The amalgamation of eastern and western philosophies within Idokan Karate”. Revista de Artes Marciales Asiáticas 18, no. 2 (July 22, 2023): 66–79. Accessed May 8, 2024. https://revistas.unileon.es/ojs/index.php/artesmarciales/article/view/6201.