Johnson, John A., and Sanko Lewis. “Report on the Conference for the 100th Anniversary of Choi Hong Hi: Taekwon-Do and Life; How to View Choi Hong Hi”. Revista de Artes Marciales Asiáticas 13, no. 2 (December 31, 2018): 177–183. Accessed March 29, 2024. https://revpubli.unileon.es/ojs/index.php/artesmarciales/article/view/5628.