Fitriani, Bhekti, Citra Indriani, and Susilawati. “Thirty Seven Confirmed Cases of Coronavirus Disease (Covid-19) from March-June in Yogyakarta City, 2020”. BKM Public Health and Community Medicine00 (April 10, 2021). Accessed November 25, 2024. https://jurnal.ugm.ac.id/v3/BKM/article/view/1570.