Prasansri, Alongkot. 2023. “Principle of Measuring Longevity Using the Calculative Method of Life Expectancy and Health-Adjusted Life Expectancy”. Journal of Medicine and Public Health, Ubon Ratchathani University 6 (1):60-69. https://he01.tci-thaijo.org/index.php/jmpubu/article/view/257632.