Mardianto, L., Putra, G., Pratama, B. I., & Putri, E. R. M. (2024). Numerical Solution of European Put Option for Black-Scholes Model Using Keller Box Method. Jurnal Matematika UNAND, 13(3), 188–197. https://doi.org/10.25077/jmua.13.3.188-197.2024