VIRIYAPONG, R.; NONGNAMTIP, S. Global Dynamics of Drug Use Model and Its Optimal Control Analysis. Asian Health, Science and Technology Reports, [S. l.], v. 31, n. 3, p. 48–66, 2023. DOI: 10.14456/nujst.2023.25. Disponível em: https://ph03.tci-thaijo.org/index.php/ahstr/article/view/1001. Acesso em: 30 aug. 2026.