Klinpudtan, N. (2022) “The Correlation Between Self-Management and Happiness Levels of Heart Disease in The Community-Dwelling Old Population of Phetchaburi Province”, Journal of The Royal Thai Army Nurses, 23(1), pp. 217–225. available at: https://he01.tci-thaijo.org/index.php/JRTAN/article/view/240567 (accessed: 28 September 2026).