Fitriani B, Indriani C, Susilawati. Thirty seven confirmed cases of coronavirus disease (Covid-19) from March-June in Yogyakarta City, 2020. BKM-PHCM [Internet]. 2021Apr.10 [cited 2024May5];00. Available from: https://journal.ugm.ac.id/v3/BKM/article/view/1570