Istanto, Widya, and Erik Maruli Tua. “Manajemen Perioperatif Pada Pasien COVID-19”. Medica Hospitalia : Journal of Clinical Medicine 7, no. 1A (August 28, 2020): 214–225. Accessed January 6, 2025. http://medicahospitalia.rskariadi.co.id:8080/medicahospitalia/index.php/mh/article/view/455.