Romualdo, C., Oliveira, W. A. de, Silva, J. L. da, Jiménez, O. E. C. and Silva, M. A. I. (2019) “Roles, characteristics and consequences of bullying among bystander students: an integrative literature review”, Salud & Sociedad, 10(1), pp. 66-78. doi: 10.22199/S07187475.2019.0001.00005.