Khan, Nafeesa, Naila Azam, Asima Shahzad, Mommana Rathore, Syed Mashhadi, and Naseer Tariq. “Janitorial Services of Tertiary Care Hospitals, a Critical Analysis”. Pakistan Armed Forces Medical Journal 73, no. 1 (March 13, 2023): 302-05. Accessed June 4, 2023. https://pafmj.org/index.php/PAFMJ/article/view/7510.