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