Arundachachai, S., Srichana, P., Jaipheng, P. and Lawong, A. (2021) “Elderly’s Life Quality in Roi-Kean-Sara-Sin Province”, Journal of Modern Learning Development, 6(2), pp. 311–322. available at: https://so06.tci-thaijo.org/index.php/jomld/article/view/248248 (accessed: 27 August 2026).