Sripoka, Jaratsri, Worasit Seaburin, Artith Panyakham, and Kawin Boonprakorn. “The comparative study of physical fitness of the elderly in Loei Province”. Journal of Humanities and Social Sciences Loei Rajabhat University 7, no. 1 (December 29, 2024): 47–57. accessed April 5, 2025. https://so01.tci-thaijo.org/index.php/husolru/article/view/276272.