Puspitaningrum, Wandhan Ayu, Nurussyifa Afiana Zaen, and Chatarina Umbul Wahjuni. “EPIDEMIOLOGY OF COVID-19 CASES IN THE KLATEN DISTRICT IN 2020”. Jurnal Berkala Epidemiologi 10, no. 2 (May 30, 2022): 210–218. Accessed December 20, 2024. https://e-journal.unair.ac.id/JBE/article/view/25599.