Open Access Research Paper Views (465) Download (35) Factors affecting distribution of coliforms bacteria in semi-arid groundwater sources- Tanzania Rita Alex, Karoli Njau Int. J. Biosci.16( 4), 487-499, April 2020. DOI: http://dx.doi.org/10.12692/ijb/16.4.487-499 Key: ColiformGroundwaterMicrobial contaminationPhysicochemical parameterWater borne diseases Details