ABDULLAH, R. Y.; GALARY, K. M.; MAJID, R. A. Association between Smartphone Addiction and Physical Activity, Sleeping Hours among Medical Science Students in Duhok City. Polytechnic Journal, [S. l.], v. 10, n. 2, p. 60-65, 2020. DOI: 10.25156/ptj.v10n2y2020.pp60-65. Disponível em: https://journals.epu.edu.iq/index.php/polytechnic/article/view/218. Acesso em: 5 may. 2024.