Zuliuskandar, V. V., Yusa, M. and Purwandari, E. P. (2025) “HYBRID METHOD USING NON-NEGATIVE MATRIX FACTORIZATION AND KEYWORD-BASED FILTERING FOR RECOMMENDER SYSTEM IN MOOCS”, Jurnal Teknik Informatika (Jutif). Purwokerto, 6(1), pp. 345-358. doi: 10.52436/1.jutif.2025.6.1.3605.