Wungrath, J., W. Boonchieng, A. Thongprachum, K. Pienrakkarn, P. Mongkol, and Y. Chanwikrai. “Community Readiness for Aging Society in Choeng Doi Sub-District, Doi Saket District, Chiang Mai Province”. Journal of Health Science of Thailand, vol. 28, no. 1, Aug. 2019, pp. S120-S131, https://thaidj.org/index.php/JHS/article/view/7917.