Raja, Zainab Hayyat, Kausar Ilyas, and Mehwish Shaheed. “Validation of Pediatric Sleep Questionnaire Translated in Urdu Language”. Pakistan Orthodontic Journal 13, no. 2 (January 10, 2022): 59–66. Accessed June 12, 2026. https://poj.org.pk/index.php/poj/article/view/311.