[1]
Batubara, H.J.S. 2022. Relationship Level Of Community Knowledge About Covid-19 Vaccination On Covid-19 Events In Polonia Medan Puskesmas 2021-2022. Science Midwifery. 10, 3 (Jul. 2022), 2001–2007. DOI:https://doi.org/10.35335/midwifery.v11i1.581.