Kittisupakorn, Suksan. “The Implementation of the Quality of Life Development Plan for the Elderly in Bangkok Phase II (2018-2021) into Efficacy Implementation”. Vajira Medical Journal : Journal of Urban Medicine 65, no. 5 (October 29, 2021): 343–356. Accessed May 2, 2024. https://he02.tci-thaijo.org/index.php/VMED/article/view/250833.