Santosa, Hendriansyah, and Kusrini Kusrini. “Book Sales Forecasting With Bidirectional LSTM: Outlier Handling and Overfitting Reduction Using Clipping and Early Stopping”. Dinasti International Journal of Education Management and Social Science 6, no. 6 (September 17, 2025): 5328–5334. Accessed May 1, 2026. https://dinastipub.org/DIJEMSS/article/view/5449.