Rujivan, S., Hongsai, P., Maleewong, M., Rakwongwan, U. and Boonchot, C. (2020) “Stochastic Modeling for SET50 Index in Thailand Using the Black-Scholes Model with A Time-Dependent Drift Parameter and Its Application to SET50 Futures Pricing”, Thai Journal of Operations Research : TJOR, 8(2), pp. 42–50. available at: https://ph02.tci-thaijo.org/index.php/TJOR/article/view/241668 (accessed: 2 September 2026).