Hensangvilai, K., and S. Pratanaphon. “The Prolonged Effects of 12 Minute Walk Test Exercise Program on Physical Fitness in Overweight Women”. Journal of Associated Medical Sciences, vol. 39, no. 1, Mar. 2015, p. 36, https://he01.tci-thaijo.org/index.php/bulletinAMS/article/view/60154.