Astutiningsih, T., Saputro, D. R. S., & Sutanto. (2023). Optimasi Algoritme Xtreme Gradient Boosting (XGBoost) pada Harga Saham PT. United Tractors Tbk. SPECTA Journal of Technology, 7(3), 632–641. https://doi.org/10.35718/specta.v7i3.1031