ไวยากรณ์ ร., สิงห์ช่างชัย เ., and พุทธิอังกูร เ. “The Relationships Between the Participatory Management Work Empowerment, and the Effectiveness of Patient Unit As Perceived by First – Line Nurse Managers, Private Hospitals”. Nursing Journal CMU, vol. 46, no. 2, June 2019, pp. 142-51, https://he02.tci-thaijo.org/index.php/cmunursing/article/view/197205.