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