S. K. Swain, B. Nahak, L. Sahoo, S. Munjal, and M. C. Sahu, “Pediatric Dysphonia - A Review”, Indian J Child Health, vol. 6, no. 1, pp. 1–5, Jan. 2019, doi: 10.32677/IJCH.2019.v06.i01.001.