Galang Pambudi, G., W. Firmansyah, H. D. Nuswantara, and D. Djunaedi. “Risk Factors for Death in Covid-19 Patients at the Muhammadiyah University General Hospital of Malang”. KnE Medicine, Vol. 2, no. 3, Sept. 2022, pp. 324–334, doi:10.18502/kme.v2i3.11883.