Prakhongpun, J., B. Thongthawee, and Y. Matchim. “Professional Nurses’ Practices in Providing Palliative Care for Patients with Chronic Obstructive Pulmonary Disease”. Nursing Journal CMU, vol. 50, no. 2, June 2023, pp. 56-70, https://he02.tci-thaijo.org/index.php/cmunursing/article/view/260396.