1. Assessment of environmental radioactivity for Sanliurfa region of southeastern Turkey
2. R.S. O’Brien, Health Phys. 72, 6, (1997).
3. R. Ravisankar, K. Vanasundari, A. Chandrasekaran, M. Suganya, P. Eswaran, P. Vijayagopal and V. Meenakshisundram, Arch. Physics. Res. 2,95, (2011).
4. United Nations. Sources and effects of ionizing radiation. UNSCEAR, New York (2000).
5. NEA-OECD. Exposure to radiation from natural radioactivity in building materaials. Report by NEA group of Experts of the Nuclear Energy Agency.OECD, Paris, France (1979).