XU, T.; ZHANG, G. Research progress of restraining campus bullying by martial arts training. Revista de Artes Marciales Asiáticas, [S. l.], v. 14, n. 2s, p. 50–52, 2019. DOI: 10.18002/rama.v14i2s.6004. Disponível em: https://revistas.unileon.es/ojs/index.php/artesmarciales/article/view/6004. Acesso em: 9 dec. 2022.