Christian Valentino and Luh Arida Ayu Rahning Putri, “Analisis Kinerja XGBoost Menggunakan Bayesian Optimization dalam Prediksi Harga Ethereum”, Jnatia, vol. 3, no. 4, pp. 795–804, Aug. 2025, doi: 10.24843/JNATIA.2025.v03.i04.p09.