ACHSINA, Dauliyatu; MARDLIJAH, Mardlijah. Analysis Mathematical Model of Radicalization S(Susceptible) E(Extremists) R(Recruiters) I(Immunity) with Optimal Control. (IJCSAM) International Journal of Computing Science and Applied Mathematics, [S. l.], v. 7, n. 2, p. 39–44, 2021. Disponível em: https://journal.its.ac.id/index.php/ijcsam/article/view/4618. Acesso em: 30 jan. 2026.