C. Khansomboon and P. Nippanon, “The Effects of Applying Empowerment and Health Literacy to The Health Literacy in Hypertension Prevention of Elderly, in Subdistrict Municipality Ummao, Yangtalat District, Kalasin Province”, TH. J. of Health Edu., vol. 40, no. 2, pp. 141–156, Jul. 2018.