Putra, Muhammad Bayu Wijaya, and Rinto Priambodo. 2026. “Graph-Based Hybrid GNN-Transformer for Imbalanced Credit Card Fraud Detection”. Sinkron : Jurnal Dan Penelitian Teknik Informatika 10 (3):1786-98. https://doi.org/10.33395/sinkron.v10i3.16245.