Niyamas, H., and C. Potjanamart. “Accessibility of Care Services Among Patients With Type 2 Diabetes in Padad Hospital, Chiang Rai Province”. Journal of Nursing and Public Health Research, Vol. 1, no. 2, Aug. 2021, pp. 70-82, https://he02.tci-thaijo.org/index.php/jnphr/article/view/251317.