Kontrol Optimal Model Matematika pada Penyebaran Judi Online di Indonesia. Proximal: Jurnal Penelitian Matematika dan Pendidikan Matematika, [S. l.], v. 9, n. 4, p. 939–948, 2026. DOI: 10.30605/proximal.v9i4.9849. Disponível em: https://e-journal.my.id/proximal/article/view/9849. Acesso em: 26 oct. 2026.