Nunnaput Rongjick, N. R., and charinya kotchana. “The Effectiveness of a Health Promotion Program on Perceived Self-efficacy, Outcome Expectation, and Self-care Behaviors among Adults with Metabolic Syndrome”. JOURNAL OF LOEI PROVINCIAL PUBLIC HEALTH OFFICE, vol. 4, no. 2, June 2026, pp. 55-70, https://he03.tci-thaijo.org/index.php/JOPOLO/article/view/5524.