Junsiri, T., W. Udomkhwamsuk, and N. Vuttanon. “Development of Clinical Practice Guidelines for Pain Management Among Patients Undergoing Open Heart Surgery”. NU Journal of Nursing and Health Sciences, vol. 19, no. 1, Feb. 2025, pp. 69-81, https://he01.tci-thaijo.org/index.php/NurseNu/article/view/267747.