Alqodri, Febrianto, et al. “Optimized BiLSTM and GRU Models Using QHBM for Forex Price Prediction”. MATRIK : Jurnal Manajemen, Teknik Informatika Dan Rekayasa Komputer, vol. 25, no. 3, July 2026, pp. 509-22, https://doi.org/10.30812/matrik.v25i3.6226.