BURROUGHS, J. A Comprehensive Introduction to Sun Family Taiji Boxing: Theory and Applications. Revista de Artes Marciales Asiáticas, [S. l.], v. 4, n. 1, p. 80–93, 2012. DOI: 10.18002/rama.v4i1.228. Disponível em: https://revpubli.unileon.es/ojs/index.php/artesmarciales/article/view/228. Acesso em: 5 dec. 2022.