Barus, M., Simbolon, P. and Uli Panjaitan, E. S. (2022) “Gambaran Pengetahuan Masyarakat Tentang Vaksinasi Covid-19”, Citra Delima Scientific journal of Citra Internasional Institute, 6(2), pp. 76–80. doi: 10.33862/citradelima.v6i2.294.