Mathematical Insights into Substance Addiction and Abuse Dynamics via Global Nonlocal Operators. African Journal for Industrial and Applied Mathematics, [S. l.], v. 1, n. 1, p. 20–46, 2025. DOI: 10.4208/ajiam.2025-0002. Disponível em: https://global-sci.com/index.php/ajiam/article/view/14529. Acesso em: 5 dec. 2025.