“Physico-Chemical And Microbial Analyses Of Groundwater From The Upper Cretaceous Deposits Underlying Parts Of Udi And Eziagu Areas Of Southeast, Nigeria”, coou-ajer, vol. 1, no. 1, pp. 25–41, Mar. 2018, Accessed: Apr. 17, 2026. [Online]. Available: http://ajer.org.ng/index.php/journal/article/view/35