Ruchakom, P. and Satayavongthip, B. 2022. Potential development among hypertensive elderly for self-care with four principles in Dan Kwian Sub-district, Chokchai District, Nakhon Ratchasima Province. Journal of Medicine and Public Health, Ubon Ratchathani University. 5, 2 (Aug. 2022), 84–93.