1. Natural radioactivity levels and heavy metals in chemical and organic fertilizer used in Kingdom of Saudi Arabia;Althoyaib;J Appl Radiat Isotope,2012
2. Determination of radioactivity levels of soil samples and the excess of lifetime cancer risk in Rize province, Turkey;Dizman;Int J Radiat Res,2016
3. National Council on Radiation Protection and Measurement (NCRP). Natural background radiation on in the U.S., Soil Radioactivity, No. 45 (1975).
4. Assessment of geogenic natural radionuclide contents of soil samples collected from OgunState, South western, Nigeria;Usikalu;Int J Radiat Res,2015
5. Radioactivity and radiation hazard assessment of CauveryRiver, Tamilnadu, India;Murugesan;Iranian J Radiat Res,2011