1. K.F. Oyedele, and D.O. Olorode, World Applied Sciences Journal 11 (9): 1097–1104 (2010).
2. O. Ologe, A.O. Ola-Buraimo, A.M. Bakari, and A. Adamu, Nigerian Journal of Scientific Research, 17 (3):May-June; njsr.abu.edu.ng, (2018).
3. American National Election Study, 1948
4. R.A. Freeze, and J.A. Cherry, Groundwater. Prentice-Hall: Englewood, NJ. 604, (1979).
5. The application of time‐lapse electrical tomography in groundwater studies