2C. Ukpaka, F.E. Ezeilo and. “Monitoring and Simulating Flow Rate in Groundwater Using Quadratic Shape Function Approach”. International Invention of Scientific Journal 2, no. 04 (April 26, 2018): 152–159. Accessed November 24, 2024. https://iisj.in/index.php/iisj/article/view/28.