Yunardi 2022. Education on the Importance of the First 1000 Days of Life in an Effort to Improve the Nutritional Status of Children in the Working Area of Kartini Public Health Center, Pematang Siantar City. IJCS: International Journal of Community Service. 1, 2 (Dec. 2022), 78–86. DOI:https://doi.org/10.55299/ijcs.v1i2.307.