Ritunga, Imelda, et al. “Penguatan Program Vaksinasi Covid-19 Di Wilayah Puskesmas Made Surabaya Barat”. Jurnal ABDINUS : Jurnal Pengabdian Nusantara, vol. 5, no. 1, June 2021, pp. 45-52, https://doi.org/10.29407/ja.v5i1.15953.