Wannasiri, T., U. Boontea, M. Jumnian, A. Oumkrua, and M. Aiamanan. “The Development of an Empowerment Model for the Elderly and Related Persons to Promote Attendance at Health Region 5 Elderly School”. Nursing Journal CMU, vol. 50, no. 3, Sept. 2023, pp. 116-29, https://he02.tci-thaijo.org/index.php/cmunursing/article/view/259163.