1. Adekunle A, Badejo AO, Oyerinde AO (2013) Pollution studies on groundwater contamination: water quality of Abeokuta, Ogun State, South West Nigeria. J Environ Earth Sci 3:161–166
2. Alausa SK, Fasunwon OO, Odunaike K (2014) Activity and corresponding mass concentrations of 40K and 238U in well waters from ago-Iwoye, Ogun State. Nigeria. J Natural Sci Res 4:1–5
3. Kumar R, Yadav SS (2011) Int J Chem Sci 9(1):440–447
4. Karanth KR (1987) Groundwater assessment, Development and management. Tata Mcgrow Hill publishing company limited, New Delhi
5. Thivya C, Chidambaram S, Rao MS, Thilagavathi R, Prasanna MV, Manikandan S (2015) Assessment of fluoride contaminations in groundwater of hard rock aquifers in Madurai district TamilNadu (India). Appl Water Sci.
https://doi.org/10.1007/s13201-015-0312-0