Vankun, P., K. Saramunee, and S. Chaiyasong. “Cost of Palliative Care for Cancer Patients of a Community Hospital in Khon Kaen Province”. Journal of Health Systems Research, vol. 15, no. 3, Sept. 2021, pp. 310-25, https://he04.tci-thaijo.org/index.php/j_hsr/article/view/3496.