Fithriany, and Cut Yuniwati. “Analysis of Immunization Services During The Covid-19 Pandemic”. Science Midwifery 10, no. 4 (September 28, 2022): 2866–2872. Accessed May 2, 2026. https://www.midwifery.iocspublisher.org/index.php/midwifery/article/view/730.