ยิสารคุณ ธนพล, and สนิทยา รักษพล. “Calculation of Life Expectancy by Life Table Method”. Journal of Health Science of Thailand 33, no. 2 (April 30, 2024): 197–198. Accessed July 18, 2024. https://thaidj.org/index.php/JHS/article/view/15257.