SIAGIAN, Ari Haikal; FARADILLAH, Yanty; ROZI, Fachrul. Sistem Rekomendasi Oleh-Oleh Medan dari UMKM Kota Medan Menggunakan Metode Collaborative Filtering. Innovative: Journal Of Social Science Research, [S. l.], v. 3, n. 5, p. 7932–7941, 2023. Disponível em: https://j-innovative.org/index.php/Innovative/article/view/5807. Acesso em: 20 may. 2026.