Tamba, Darwin, 		Tampubolon, Pretty, AND 		Saragih, Herna.
" PERSEPSI MASYARAKAT TENTANG VAKSINASI COVID-19 DI KELURAHAN PULO BRAYAN MEDAN" <em>JURNAL DARMA AGUNG HUSADA</em> [Online], Volume 10 Number 1 (17 April 2023)