Investigation of University Students’ Smartphone Usage Levels and Effects. International Journal of Technology in Education and Science, [S. l.], v. 5, n. 3, p. 411–426, 2021. DOI: 10.46328/ijtes.235. Disponível em: https://ijtes.net/index.php/ijtes/article/view/1636. Acesso em: 7 jun. 2025.