Makarabhirom, Kalyanee, and Chuan Cheepjareonrat. “Effectiveness of Vocal Education from Videodisk in Patients With Vocal Nodule”. Srinagarind Medical Journal 27, no. 2 (August 22, 2013): 147–156. Accessed May 6, 2024. https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/11107.