Infantes-Paniagua, Álvaro, et al. “Differences in Self-Concept Between Gifted and Non-Gifted Students: A Meta-Analysis from 2005 to 2020”. Anales De Psicología Annals of Psychology, vol. 38, no. 2, Apr. 2022, pp. 239-50, doi:10.6018/analesps.461971.