Hizham, Fadhel Akhmad, Hasyim Asyari, and Maysas Yafi Urrochman. “Sentiment Analysis of Ijen Crater Reviews Using Decision Tree Classification and Oversampling Optimization”. Journal of Informatics Development 3, no. 1 (October 31, 2024): 1–10. Accessed April 23, 2025. https://ejournal.itbwigalumajang.ac.id/index.php/jid/article/view/1399.