Widyasari, Rina, Muhammad Chairul Imam, Ramya Rachmawati, and Rina Filia Sari. “Survival Analysis of Covid-19 Patients Based on Time of Recovery”. Jurnal Matematika, Statistika dan Komputasi 18, no. 3 (May 15, 2022): 456-474. Accessed April 12, 2025. http://334012.libg.asia/index.php/jmsk/article/view/18338.