Kumwong , K., T. kanpakdee, and K. Sukunnee. “Factors associated with service of non-communicable clinics in public hospitals during coronavirus disease 2019 outbreak, Region 4, 2020”. Journal of Medical and Public Health Region 4, vol. 11, no. 2, Sept. 2021, pp. 13-27, https://he01.tci-thaijo.org/index.php/JMPH4/article/view/251489.