Kuptniratsaikul, V., S. Kaewnaree, A. Leurcharusamee, and C. Chavasiri. “Vocational and Avocational Activities After Traumatic Spinal Cord Injury”. Siriraj Medical Journal, vol. 51, no. 2, Feb. 1999, pp. 77-85, https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/246870.