Prayoonkiat, K. ., and P. . Waikasikam. “THE DEVELOPMENT OF CHAIR BASED EXERCISE PROGRAM TO REDUCE THE RISK OF FALLING OF THE ELDERLY”. Academic Journal of Thailand National Sports University, vol. 14, no. 2, Apr. 2022, pp. 227-42, https://he02.tci-thaijo.org/index.php/TNSUJournal/article/view/247467.