Boredom and lack of control: examination of predictive psychological factors of problematic smartphone use among Hungarian youth. Training and Practice : Journal of Educational Sciences, [S. l.], v. 18, n. 3-4, p. 41–49, 2020. DOI: 10.17165/TP.2020.3-4.4. Disponível em: https://journal.uni-mate.hu/index.php/trainingandpractice/article/view/4008. Acesso em: 5 dec. 2025.