“Digital Transformation in Library Recommendation System Using K-NN Collaborative Filtering: Transformasi Digital Dalam Sistem Rekomendasi Buku Perpustakaan Menggunakan K-NN”. Technomedia Journal 10, no. 1 (Juni 18, 2025): 12–25. Diakses April 20, 2026. https://ijc.ilearning.co/index.php/TMJ/article/view/2438.