M. E. Morales-Ramírez and M. Villalobos-Cordero , Trans., “The Impact of Bullying in the Integral Development and Learning from the Perspective of Children in Preschool and School”, Rev. Electr. Educare, vol. 21, no. 3, pp. 1–20, Aug. 2017, doi: 10.15359/ree.21-3.2.