Tummakun, S., & Reangtip, P. (2019). Self-Regulation and Social Environment for Predicting the Discriminants of Physical Fitness among The Elderly People in Bangkok. Vajira Medical Journal : Journal of Urban Medicine, 63(2), 141–156. Retrieved from https://he02.tci-thaijo.org/index.php/VMED/article/view/211616