Machimbarrena, Juan M, and Maite Garaigordobil. 2017. “Bullying/Cyberbullying in 5th and 6th Grade: Differences Between Public and Private Schools”. Anales De Psicología / Annals of Psychology 33 (2), 319-26. https://doi.org/10.6018/analesps.33.2.249381.