MUKHLISIN, M.; NUGROHO, H. W. . Customer Loyalty Classification Using KNN and Decision Tree for Sales Strategy Development. Sinkron : jurnal dan penelitian teknik informatika, [S. l.], v. 9, n. 3, p. 1159-1166, 2025. DOI: 10.33395/sinkron.v9i3.15110. Disponível em: https://jurnal.polgan.ac.id/index.php/sinkron/article/view/15110. Acesso em: 19 sep. 2025.