Kittiwarawut, Jaruwan, and Supannee Amnuaypornsathit. “Reliability of Thai-Version Of Neck Disability Index (Thai-Ndi) For Disability Evaluation In Subacute And Chronic Neck Pain Patients”. Srinagarind Medical Journal 29, no. 5 (December 22, 2014): 469–474. Accessed April 30, 2024. https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/25924.