วงค์สารี ชัชวาล, วิชาดี ภพธรรม, and ก๋าใจ เฉลิมพล. “Nurses’ Roles in the Hardiness of the Elderly in the Social Welfare Development Center by Implication the Theory of Self-efficacy”. Journal of health and health management 5, no. 1 (June 1, 2019): 9–21. accessed March 14, 2025. https://he01.tci-thaijo.org/index.php/slc/article/view/221387.