Balakrishna, R.S. (2007) Distribution of U-Th nuclides in the Riverine and Coastal Environments of the Tropical South West Coast of India. Journal of Environmental Radioactivity, 57, 21-33.
 Onjefu, A., Kgabi, A., Simeon, H., Taole, O., Mtambo, P.I., Charles, G. and Antoine, J. (2016) Occupancy Factor Model for Exposure to Natural Radionuclides along the Coastline of Erongo Region, Namibia. Journal of Geoscience and Environmental Protection, 4, 117-126.
 Pereira, A.N. (2012) Estimation of the Radiological Background and Dose Assessment in Areas with Naturally Occurring Uranium Geochemical Anomalies. Journal of Environmental Radioactivity, 112, 96-107.
 Omale, P.O. (2014) Determination for Levels of Radionuclides of Uranium, Thorium and Potassium in Water, Sediments and Algae Samples from Selected Coastal Area of Lagos, Nigeria; Using Energy Dispersive X-Ray Fluorescence. Global Journal of Pure and Applied Chemistry Research, 2, 1-24.
 Ngachin, M.G. (2007) Assessment of Natural Radioactivity and Associated Radiation Hazards in Some Cameroonian Building Material. Radiation Measurement, 42, 61-67.
 Sombo, T., Ige, T.A. and Agba, E.H. (2015) Mathematical Modelling of the Effects of Gamma Irradiation on Dielectric Dispersion of Bovine Liver Tissue at Low and Radiofrequency. International Journal of Biophysics, 5, 12-17.
 Ologunorisa, T. and Tersoo, T. (2006) The Changing Rainfall Pattern and Its Implication for Flood Frequency in Makurdi, Northern Nigeria. Journal of Applied Sciences and Environmental Management, 10, 97-102.
 Singh, S. and Rakesh, K. (2005) Ra-226, Th-232 and K-40 Analysis in Soil Sample from Some Area of Punjab and Himachal Pradesh, India using Gamma Ray Spectrometry. Radiation Measurements, 39, 431-439.
 Ajayi, O.S. (2009) Measurement of Activity Concentrations of 40K, 226Ra and 232Th for Assessment of Radiation Hazards from Soils of the Southwestern Region of Nigeria. Radiation and Environmental Biophysics, 48, 323-332.
 Kumar, A., Kumar, M., Singh, B. and Singh, S. (2003) Natural Activities of U-232, Th-238 and K-40 in Some India Building Materials. Radiation Measurement, 36, 465-469.
 Nizam, Q.M.R., Ginnah, M.A., Rahman, M.M. and Chowdhury, M.I. (2013) Assessment of Activity Concentrations of Radionuclides from Upper Level Sediment in Charfassion Island, Bhola, Bangladesh. Journal of Nuclear and Particle Physics, 3, 36-39.
 Belivernis, M., Kilic, N., Cotuk, Y. and Topcuoglu, S. (2010) The Effects of Physicochemical Properties on Gamma Emitting Natural Radionuclide Levels in the Soil Profile of Istanbul. Environmental Monitoring and Assessment, 163, 15-26.