jankaew, D., wongwai, C. ., khampha, K. ., & phongthong, N. . (2020). The Study of Health Care Factors Affecting Elderly Welfare Promotion Muang District and Warin Chamrap District, Ubon Ratchathani Province. Journal of Roi Et Rajabhat University, 14(2), 45–51. Retrieved from https://so03.tci-thaijo.org/index.php/reru/article/view/207351