Karuhadej, P., and K. . Napapongsa. “Outcome of Self-Efficacy Enhancement Program on Knowledge and Confidence to Prevent Complications of Hypertension and Diabetic Mellitus of the Elderly in the Puranawat Temple Elderly Club, Bangkok”. Kuakarun Journal of Nursing, vol. 28, no. 2, Dec. 2021, pp. 22-35, https://he01.tci-thaijo.org/index.php/kcn/article/view/250930.