Tasai, P., U. Pirunsan, J. Rapipong, and N. Boontha. “Effects of Educational and Back Exercise Program in Transfer Workers With Chronic Low Back Pain”. Journal of Associated Medical Sciences, vol. 50, no. 2, May 2017, p. 245, https://he01.tci-thaijo.org/index.php/bulletinAMS/article/view/74293.