Mohamad Fahmi Hafidz, Sri Lestari. Solution to Scalability and Sparsity Problems in Collaborative Filtering using K-Means Clustering and Weight Point Rank (WP-Rank). J. RESTI (Rekayasa Sist. Teknol. Inf.) . 2023;7(4):743-750. doi:10.29207/resti.v7i4.4543