Tritipsombut, J., C. Kaopimai, W. Sornchamnong, W. Thoengnog, S. Thuengthao, and A. Yoongklang. “Health Care Behaviors of The Elders Using 11 Basic Elements for Health”. Srinagarind Medical Journal, vol. 30, no. 5, Dec. 2015, pp. 482-90, https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/43321.