Marsela, Yenny, Winda Hotma Uli, and Suryanti Suryanti. 2021. “Pelayanan Imunisasi Pada Bayi Selama Pandemi Covid-19”. Zona Kebidanan: Program Studi Kebidanan Universitas Batam 11 (2):83-92. https://doi.org/10.37776/zkeb.v11i2.761.