Mathematical Modeling of Social Media Addiction and Depression in a Stratified Population. International Journal of Development Mathematics (IJDM), [S. l.], v. 2, n. 4, p. 086–104, 2025. DOI: 10.62054/ijdm/0204.05. Disponível em: https://ijdm.org.ng/index.php/Journals/article/view/269.. Acesso em: 27 jul. 2026.