“Pengelompokkan Pendonor Darah Berdasarkan Golongan Darah Di PMI Kabupaten Langkat Menggunakan Metode Clustering K-Means”, Fusion, vol. 2, no. 1, pp. 40–48, Sep. 2025, Accessed: Feb. 04, 2026. [Online]. Available: https://ejurnal.faaslibsmedia.com/index.php/fusion/article/view/261