Nur Ghaniaviyanto Ramadhan, and Aji Gautama Putrada. “XGBoost for Predicting Airline Customer Satisfaction Based on Computational Efficient Questionnaire”. International Journal on Information and Communication Technology (IJoICT), Vol. 9, no. 2, Dec. 2023, pp. 120-36, doi:10.21108/ijoict.v9i2.864.