Multivariate Hydrochemical Characterization and Spatial Variability of Groundwater Quality in Kano Region, Nigeria: Insights into Natural Geology and Anthropogenic Influence. IJIES [Internet]. 2026 Jan. 30 [cited 2026 Jan. 31];13(1):1-21. Available from: https://journals.blueeyesintelligence.org/index.php/ijies/article/view/983