Mwevura, H., Haji, M. R., Othman, W. J. and Okafor, C. J. (2021) “Seasonal Assessment of Quality of Groundwater from Private Owned Wells in Unguja Island Zanzibar”, International Journal of TROPICAL DISEASE & Health, 42(4), pp. 30-45. doi: 10.9734/ijtdh/2021/v42i430449.