Manurung MEM. Mom’s Knowledge Regarding Basic Immunization To Babies In The Sigumpar Public Health Center Area Year 2021. midwifery [Internet]. 2021 Sep. 5 [cited 2026 Jun. 19];10(1, October):103-7. Available from: https://midwifery.iocspublisher.org/index.php/midwifery/article/view/149