Kummom, D., & Daengthern, L. (2019). Relationship between Roles of Head Nurses in Supervision with Core Competencies of Civil Servants of Nurses, Phrae Hospital. NU Journal of Nursing and Health Sciences, 12(2), 117–127. Retrieved from https://he01.tci-thaijo.org/index.php/NurseNu/article/view/171874