Mangsrakhu, Ubonrat, Warinee Iemsawasdikul, and Mukda Nuysri. 2019. “The effects of health behavior modification program for elderly with hypertension at Suwannaphum District, Roi Et Province”. Thai Journal of Nursing 68 (3):1-10. https://he02.tci-thaijo.org/index.php/TJN/article/view/233306.