Machimbarrena, J. M., & Garaigordobil, M. (2017). Bullying/Cyberbullying in 5th and 6th grade: differences between public and private schools. Anales De PsicologĂ­a / Annals of Psychology, 33(2), 319-326. https://doi.org/10.6018/analesps.33.2.249381