Ibnu, Yunis Sucipta, and Irwan Kristyono. “Unusual Choanal Atresia in Children”. Folia Medica Indonesiana 58, no. 3 (September 5, 2022): 261–266. Accessed April 1, 2025. https://e-journal.unair.ac.id/FMI/article/view/11744.