Beichumila, F. T., Mwinuka, E. O., & Lema, I. A. (2026). Natural Zeolite for Sustainable Groundwater Softening: Experimental Evaluation of Total Hardness Removal from Borehole Water in Singida Municipality, Tanzania. International Journal of Environment, Agriculture and Biotechnology, 11(4), 282–305. https://doi.org/10.22161/ijeab.114.35