Syaifuddin, A., Saptono, R., Rohmadi, A., Widoyono, B., & Hendrasuryawan, B. (2026). Optimizing E-commerce Personalization through Hybrid Decision Tree–Nearest Neighbor Recommendation Integration. Jurnal Teknik Informatika (Jutif), 7(2), 1028–1039. https://doi.org/10.52436/1.jutif.2026.7.2.5418