Thirapattarabawornsuk, N., and O. Piyasakulkiat. “Quality of Life of the Elderly in Bang Mueang Sub-district Municipality, Mueang District, Samut Prakan Province”. Doctor of Philosophy in Social Sciences Journal, vol. 4, no. 1, Apr. 2025, pp. 18-34, https://so08.tci-thaijo.org/index.php/dpssj/article/view/4406.