Thajeen, Kallayanee, Nongnut Boonyoung, and Wimonrat Jongjarean. 2015. “Head Nurses’ Competencies in Implementation of the Action Plan As Perceived by Nurses in Tertiary Hospitals, Southern Thailand”. Journal of Research in Nursing-Midwifery and Health Sciences 35 (3):127-40. https://he02.tci-thaijo.org/index.php/nur-psu/article/view/44352.