Hakam, A., Ummah, I., Rani, F. A., Asiyah, N., & Putri, E. R. (2021). Digital Option Pricing Approach Using A Homotopy Perturbation Method. (IJCSAM) International Journal of Computing Science and Applied Mathematics, 7(2), 63–67. Retrieved from https://journal.its.ac.id/index.php/ijcsam/article/view/4636