Ramadhani, Fanny, Sri Dewi, Dian Septiana, Diah Retno Wahyuningrum, and Andy Satria. 2026. “District Level Child Nutrition Vulnerability in North Sumatra Using Composite Indeks, Machine Learning Benchmarking”. Jurnal Sistem Komputer Dan Informatika (JSON) 7 (4):1593-1603. https://doi.org/10.30865/json.v7i4.9785.