Donohue, John. “Budo Mind and Body: Training Secrets of the Japanese Martial Arts”. Revista de Artes Marciales Asiáticas 1, no. 4 (July 17, 2012): 121–122. Accessed April 19, 2024. https://revistas.unileon.es/ojs/index.php/artesmarciales/article/view/279.