Nobre, Rafaele Carvalho, Lucas Camilo Pereira, Caio Vieira Nunes, Rosane de Almeida Andrade, and Thiago Medeiros da Costa Daniele. 2019. “Study on Bullying, Concepts and Applications in School and Physical Education Classes”. Lecturas: Educación Física Y Deportes 24 (258), 67-73. https://efdeportes.com/efdeportes/index.php/EFDeportes/article/view/1037.