Ndubuisi Eluozo, S. . “Predictive Model to Monitor the Transport of E. Coli in Homogeneous Aquifers in Port Harcourt Niger Delta of Nigeria”. Pure and Applied Science Advances, vol. 2, no. 3, Mar. 2013, pp. 140-5, http://sjournals.com/index.php/sjpas/article/view/986.