Rittimanomai, S., W. Witthayapipopsakul, V. Vongmongkol, and S. Viriyathorn. “Factors Affecting Access to Assistive Devices among Older Persons: An Analysis of Thai Older Persons Surveys from 2002 to 2017”. Journal of Health Systems Research, vol. 18, no. 1, Mar. 2024, pp. 109-35, https://he04.tci-thaijo.org/index.php/j_hsr/article/view/2403.