Arianto, Bambang, and Nyilo Purnami. “Characteristics of Hospital Employees Confirmed Covid-19 in Haji General Hospital Surabaya”. Journal of Medical Case Reports and Reviews 4, no. 10 (January 28, 2022). Accessed December 22, 2024. http://jmcrr.info/index.php/jmcrr/article/view/37.