Debi Novita Siregar, Pintaken Sembiring Pandia, Ayu Lestari Tarigan, Lia Mauliar Sapitri, and Subang Aini Nasution. “The Correlation Between Mother’s Knowledge About The Impact of The Covid 19 Pandemic and Mother’s Attitudes Toward Bringing Babies to Immunization”. Caring: Indonesian Journal of Nursing Science 4, no. 2 (December 31, 2022): 36-41. Accessed April 19, 2024. https://talenta.usu.ac.id/IJNS/article/view/10225.