SRI LESTARI; M. ELRICO AFDILA; YAN ADITIYA PRATAMA. Imputation Missing Value to Overcome Sparsity Problems in The Recommendation System. Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi), [S. l.], v. 7, n. 6, p. 1285–1291, 2023. DOI: 10.29207/resti.v7i6.5300. Disponível em: https://jurnal.iaii.or.id/index.php/RESTI/article/view/5300. Acesso em: 30 oct. 2026.