Thaweewannakij, Thiwaporn, Sugalya Amatachaya, Punnee Peungsuwan, and Lugkana Mato. 2010. “Balance, fall and quality of life in active and inactive elderly”. Archives of Allied Health Sciences 22 (3). Khon Kaen, Thailand:271-79. https://he01.tci-thaijo.org/index.php/ams/article/view/66192.