1. Evaluation of natural radionuclides at Um-Greifat area, eastern desert of Egypt;Nada,2003
2. Estimation of radiation exposure associated with the saline soil of Lahore, Pakistan;Akhtar,2004
3. Measurement of natural radioactivity in Brazilian beach sands;Veiga,2006
4. The radioactivity measurements in soil, coal and water in South Marmara region of Turkey;Yalcin,2007
5. The radioactivity measurements in soils and fertilizers using gamma spectrometry technique;Boukhenfouf,2011