Classification of bandung regency well water based on mineral elements using agglomerative clusteringYuli Sri Afrianti, Grace Angelia, Fadhil Hanif Sulaiman, Utriweni Mukhaiyar, Katharina Oginawati, Indah Rachmatiah Siti Salami and Nurul FahimahITM Web Conf., 75 (2025) 04002DOI: https://doi.org/10.1051/itmconf/20257504002