Mazunga , Mohamed, and Masasi Kamanyola. 2021. “Assessment of the Relationship Between Heavy Metal Concentrations in Soil and Tea Leaves Grown at Amani in Tanga Region by Energy Dispersive X-Ray Fluorescence (EDXRF)”. Journal of Humanities &Amp; Social Science (JHSS) 10 (4). https://doi.org/10.56279/jhss.v10i4.103.