Setiawan, R., B. Tjahjono, G. Firmansyah, and H. Akbar. “Fraud Detection in Credit Card Transactions Using HDBSCAN, UMAP and SMOTE Methods”. International Journal of Science, Technology & Management, Vol. 4, no. 5, Sept. 2023, pp. 1333-9, doi:10.46729/ijstm.v4i5.929.