Ramos Pavez, C., & Redondo Rojo, J. M. (2004). Aggression in High School. A Descriptive Study of Perception in teenagers of 9 urban-popular schools of the Metropolitan Region. Revista De Psicología, 13(1), Pág. 35–55. https://doi.org/10.5354/0719-0581.2004.17461