Herikurniawan, H., C. M. Rumende, S. Setiati, J. Kumalawati, and B. T. Deslanthy. “Diagnostic Model of COVID-19 Infection Based on the Combination of Clinical Symptoms, Chest Radiography and Laboratory Test”. Acta Medica Indonesiana, vol. 54, no. 3, Sept. 2022, p. 419, http://actamedindones.org/index.php/ijim/article/view/2094.