Pratiwi, Dewi, and Embun Nasution. 2022. “Edukasi Cuci Tangan Yang Baik Dan Benar Guna Pencegahan Penularan Covid-19 Di MIS Annur Prima Medan”. Unri Conference Series: Community Engagement 3 (February), 346-50. https://doi.org/10.31258/unricsce.3.346-350.