Ekphachaisawat, Teerapatra, Thidarak Luecha, Nonglak Arnee, and Jitranan Sricharoen. “The Development of a Situation Test to Measure Psychological Well-Being of the Thai Elderly”. Princess of Naradhiwas University Journal of Humanities and Social Sciences 10, no. 2 (July 16, 2023): 281–300. accessed September 3, 2026. https://so05.tci-thaijo.org/index.php/pnuhuso/article/view/265122.