Jayathavaj, V. ., and A. Pongpullponsak. “Forecasting the Number of Deaths from Cerebrovascular Diseases in Thailand Using Grey Systems Theory”. Journal of Current Science and Technology, vol. 7, no. 2, Feb. 2023, pp. 131-40, https://ph04.tci-thaijo.org/index.php/JCST/article/view/496.