Promyen N, Sirisophon A, Nimitpornchai P. The Perceived Self-efficacy among Elderly People with a Chronic Disease. Nursing [internet]. 2020 Aug. 18 [cited 2026 Sep. 28];14(2):126-37. available from: https://he01.tci-thaijo.org/index.php/NurseNu/article/view/243349