Puttipong Poncumhak และ Sugalya Amatachaya. (2012) Levels of walking ability of patients with spinal cord injury as determined by using 3 functional tests. Khon Kaen University:ม.ป.ท.Puttipong Poncumhak และ Sugalya Amatachaya. 2012. Levels of walking ability of patients with spinal cord injury as determined by using 3 functional tests. ม.ป.ท.:Khon Kaen University;Puttipong Poncumhak และ Sugalya Amatachaya. Levels of walking ability of patients with spinal cord injury as determined by using 3 functional tests. ม.ป.ท.:Khon Kaen University, 2012. Print.