Sumalpong, Felipe Jr Raypan, Michael Frondoza, and Noel Lito Sayson. “British Put Option On Stocks Under Regime-Switching Model”. European Journal of Pure and Applied Mathematics 16, no. 3 (July 30, 2023): 1830–1847. Accessed December 7, 2023. https://ejpam.com/index.php/ejpam/article/view/4830.