Umiyati, Umiyati, et al. “Analisis Kinerja Keuangan: Studi Multi-Metode (RGEC, Z-Score, DEA, Altman, Dan Zmijewski) Pada PT. Bank BJB Syariah Periode 2020–2024”. RIGGS: Journal of Artificial Intelligence and Digital Business, vol. 4, no. 4, Jan. 2026, pp. 8064-81, doi:10.31004/riggs.v4i4.4873.