JOERN, T. How Baguazhang Incorporates Theory from the Book of Changes. Revista de Artes Marciales Asiáticas, [S. l.], v. 6, n. 1, p. 61–82, 2012. DOI: 10.18002/rama.v6i1.85. Disponível em: https://revpubli.unileon.es/ojs/index.php/artesmarciales/article/view/85. Acesso em: 29 nov. 2022.