Duangchit, W., and U. Sadjapong. “Effects of a self-efficacy and self-management enhancing program on health behaviors and blood pressure levels of elderly people with hypertension in Mae Yen Sub-district, Phan District, Chiang Rai Province”. Journal of Public Health and Health Sciences Research, vol. 7, no. 1, Apr. 2025, pp. 135-49, https://he01.tci-thaijo.org/index.php/JPHSR/article/view/270406.