MARDIANTO, Lutfi; PUTRA, Gusrian; PRATAMA, Benediktus Ivan; PUTRI, Endah R. M. Numerical Solution of European Put Option for Black-Scholes Model Using Keller Box Method. Jurnal Matematika UNAND, [S. l.], v. 13, n. 3, p. 188–197, 2024. DOI: 10.25077/jmua.13.3.188-197.2024. Disponível em: https://jmua.fmipa.unand.ac.id/index.php/jmua/article/view/1207. Acesso em: 4 nov. 2026.