N. A. Natasaskara, Y. Pristyanto, and I. N. Fajri, “Prediksi Harga Rumah Menggunakan XGBoost Berbasis Optuna Hyperparameter Optimization: House Price Prediction using XGBoost Based on Optuna Hyperparameter Optimization”, MALCOM, vol. 6, no. 3, pp. 1052-1059, Jun. 2026.