Thajeen, K., N. Boonyoung, and W. Jongjarean. “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, vol. 35, no. 3, Dec. 2015, pp. 127-40, https://he02.tci-thaijo.org/index.php/nur-psu/article/view/44352.