Struckmeier WF, Margat, J. Hydrogeological Maps—A guide and a Standard Legend. International Association of Hydrogeologists (IAH). 1995; 17: 177.
MacDonald AM, DaviesJ. A brief review of groundwater for rural water supply in sub-Saharan Africa. British Geological Survey Technical Report 2000; WC/00/33.
MacDonald AM, Davies J, Peart RJ. Geophysical methods for locating groundwater in low permeability sedimentary rocks: Examples from southeast Nigeria. Journal of African Earth Sciences. 2001; 32: 115–131. doi: 10.1016/S0899-5362(01)90022-3
Neuzil CE. Groundwater Flow in Low‐Permeability Environments. Water Resources Research. 1986; 22(8): 1163–1195. doi: 10.1029/wr022i008p01163
Onuoha KM, Mbazi FCC. Aquifer Transmissivity from Electrical Sounding Data. The Case of Ajali Sandstone Aquifers, South-West of Enugu. In: Ofoegbu CO (editor). Ground Water and Mineral Resources of Nigeria, Fried-vieweg and Sohn,Wiesbaden. 1988. pp. 17–29.
Ekwe AC, Onu NN, Onuoha KM. Estimation of aquifer hydraulic characteristics from electrical sounding data: The case of middle Imo River basin aquifers, southeastern Nigeria. Journal Spatial Hydrology. 2006; 6(2): 121–132.
Ekwe AC, Opara AI. Aquifer transmissivity from surface geo-electrical data: A case study of owerri and environs, southeastern Nigeria. Journal of the Geological Society of India. 2012; 80(1): 123–128. doi: 10.1007/s12594-012-0126-8
Opara AI, Onu NN, Okereafor DU. Geophysical Sounding for the Determination of Aquifer Hydraulic Characteristics from Dar- Zarrouk Parameters: Case study of Ngor Okpala, Imo River Basin, Southeastern Nigeria. Pacific Journal of Science and Technology. 2012; 13(1): 590–603.
Ekwe AC, Nnodu IN, Ugwumbah KI et al.. Estimation of Aquifer Hydraulic Characteristics of Low Permeability Formations from Geosounding Data: A case study of Oduma Town, Enugu State; Online Journal of Earth Sciences 2010; 4(1): 19-26. doi: 10.3923/ojesci.2010.19.26
Maxwell O, Ejike EJ,Ugwuoke PE. Geophysical Analysis of Basement Terrain Groundwater Using Vertical Electrical Sounding: A Case Study of Parts of Abuja North Central Nigeria. International Journal of Geophysics and Geochemistry. 2015; 2(4): 92–97.
Loke MH, Chambers JE, Rucker DF, et al. Recent developments in the direct-current geoelectrical imaging method. Journal of Applied Geophysics. 2013; 95: 135–156. doi: 10.1016/j.jappgeo.2013.02.017
Ekwe AC, Onuoha MK, Ugodulunwa FXO. Prospecting for groundwater in low permeability formations using the electrical resistivity method: The case of Ikwo and environs, southeastern Nigeria. International Workshop and Gravity, Electrical & Magnetic Methods and their Applications, Chenghu, China. 2015; 19–22.doi: 10.1190/gem2015-127.
Nwankwoala HO. An integrated approach to sustainable groundwater development and management in Nigeria. Journal of geology and mining research. 2011; 3(5): 123–130.
Nwankwoala HNL. Causes of Climate and Environmental Changes: The Need for Environmental-Friendly Education Policy in Nigeria. Journal of Education and Practice. 2015; 6(30): 224–234.
Ekwok SE, Akpan AE, Ebong ED, et al. Assessment of depth to magnetic sources using high resolution aeromagnetic data of some parts of the Lower Benue Trough and adjoining areas, Southeast Nigeria. Advances in Space Research. 2021; 67(7): 2104–2119. doi: 10.1016/j.asr.2021.01.007
Okolo GC, Emedo OC, Obumselu AC, et al. Lithofacies, particle size analysis and paleodepositional environment of the Eze-Aku Group (Cenomanian–Turonian) in the Itigidi-Ediba area, Afikpo Synclinorium, southeastern Nigeria. Journal of Sedimentary Environments. 2020; 5(4): 375–398. doi: 10.1007/s43217-020-00012-9
Okogbue CO, Aghamelu OP. Performance of pyroclastic rocks from Abakaliki Metropolis (southeastern Nigeria) in road construction projects. Bulletin of Engineering Geology and the Environment. 2013; 72(3–4): 433–446. doi: 10.1007/s10064-013-0489-0
Okpoli CC. Sensitivity and Resolution Capacity of Electrode Configurations. International Journal of Geophysics. 2013; 2013: 1–12. doi: 10.1155/2013/608037
Amadi AN, Olasehinde PI, Okosun EA, Yisa J. Assessment of the water quality index of Otamiri and Oramiriukwa Rivers. Physics International 2010; 1(2): 102-109.
A. Zohdy, “Application of Surface Geophysical (Elec- trical Methods to Groundwater Investigations),” Techni- ques of Water Resources Investigations of the United States Geological Survey, 1976, pp. 5-55.
Reyment RA. Aspects of the geology of Nigeria: the stratigraphy of the Cretaceous and Cenozoic deposits.Ibadan University Press; 1965. p. 133.
Ofoegbu CO, Amajor LC. A geochemical comparison of the pyroclastic rocks from Abakaliki and Ezillo, southeastern Benue Trough. J. Min. Geol. 1987; 23(1–2): 45–51.
Murat RC. Stratigraphy and paleogeography of the Cretaceous and Lower Tertiary in Southern Nigeria. African geology. 1972; 1(1): 251–266.
Nwachukwu SO. The tectonic evolution of the southern portion of the Benue Trough, Nigeria. Geological Magazine. 1972; 109(5): 411–419. doi: 10.1017/s0016756800039790
Benkhelil J. The origin and evolution of the Cretaceous Benue Trough (Nigeria). Journal of African Earth Sciences (and the Middle East). 1989; 8(2–4): 251–282. doi: 10.1016/S0899-5362(89)80028-4
Adejuwon BB, Obasi IA, Salami AA. Integrated geophysical study for mapping Pb–Zn sulfide deposits in Asu River Group shales in Nkpuma-Ekwoku, Abakaliki area, southeastern Nigeria. Arabian Journal of Geosciences. 2021; 14(14). doi: 10.1007/s12517-021-07770-4
Wang W, Zhao K, Zhang P, et al. Investigation of water ingress into uncracked and cracked cement-based materials using electrical capacitance volume tomography. Materials & Design. 2022; 220: 110877. doi: 10.1016/j.matdes.2022.110877
Oli IC, Opara AI, Okeke OC, et al. Evaluation of aquifer hydraulic conductivity and transmissivity of Ezza/Ikwo area, Southeastern Nigeria, using pumping test and surficial resistivity techniques. Environmental Monitoring and Assessment. 2022; 194(10). doi: 10.1007/s10661-022-10341-z