Pengelompokkan Pendonor Darah Berdasarkan Golongan Darah Di PMI Kabupaten Langkat Menggunakan Metode Clustering K-Means. Fusion : Journal of Research in Engineering, Technology and Applied Sciences, [S. l.], v. 2, n. 1, p. 40–48, 2025. Disponível em: https://ejurnal.faaslibsmedia.com/index.php/fusion/article/view/261.. Acesso em: 13 oct. 2025.