Naeem, Iqra, Raffa Mubeen, Syed Aftab Haider Shah, Sumaiyah Obaid, and Ghulam Saqulain. “Maximum Phonation Time of School-Aged Children in Pakistan: A Normative Study : Maximum Phonation Time of School-Aged Children”. Pakistan Journal of Health Sciences 5, no. 02 (February 29, 2024): 13–18. Accessed November 22, 2024. https://thejas.com.pk/index.php/pjhs/article/view/1290.