Mwevura, Haji, Moh’d R. Haji, Wahira J. Othman, and Chukwuma J. Okafor. 2021. “Seasonal Assessment of Quality of Groundwater from Private Owned Wells in Unguja Island Zanzibar”. International Journal of TROPICAL DISEASE & Health 42 (4), 30-45. https://doi.org/10.9734/ijtdh/2021/v42i430449.