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 & Social Science (JHSS). 10, 4 (Dec. 2021). DOI:https://doi.org/10.56279/jhss.v10i4.103.