Haryanti, Titik, Akhmad Azmiardi, Dewi Puspito Sari, and Sumardiyono Sumardiyono. 2021. “Prevalence of Mask Using Behavior During Covid-19 Pandemic”. Jurnal Ilmu Kesehatan Masyarakat Berkala (JIKeMB) 3 (2):98-102. https://doi.org/10.32585/jikemb.v3i2.1713.