MOHD JAMALUDIN, S. Z.; MAJAHAR ALI, M. K.; SHIUNG, E. W. V.; ISMAIL, M. T.; IBRAHIM, N. F.; ZAMRI, N. E. INTEGRATING STRUCTURED AND UNSTRUCTURED FEATURES FOR E-TICKETING CLASSIFICATION: A MACHINE LEARNING AND ENSEMBLE-BASED APPROACH. BAREKENG: Jurnal Ilmu Matematika dan Terapan, v. 20, n. 4, p. 2839-2850, 24 ago. 2026.