Pho-ngam, D. “The Comparison of Quality of Life Between Diabetes-Related Toe Amputees and Diabetes-Related Below Knee Amputees”. Srinagarind Medical Journal, vol. 31, no. 1, Mar. 2016, pp. 8-15, https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/51058.