Althobaity, Hosam M., Raed A. S. Alharthi, Mohammed H. Altowairqi, Ziyad A. Alsufyani, Nahar S. Aloufi, Abdulrahman E. Altowairqi, Abdulrahman S. Alqahtani, Ali K. Alzahrani, and Ahmed S. Abdel-Moneim. 2017. “Knowledge and Awareness of Middle East Respiratory Syndrome Coronavirus Among Saudi and Non-Saudi Arabian Pilgrims”. International Journal of Health Sciences 11 (5). https://pub.qu.edu.sa/index.php/journal/article/view/2149.