1- Abojassim, A., Al-gazaly, H., Kadhim, S. and M. Guida. 2014. Natural radioactivity and radon activity concentration in canned milk samples in Iraq. Proceedings of the 4th International Conference on Advances in Environmental and Agricultural Science, Dubai, 354-362.
2- Ahmad, N., and M. Suhaimi Jaafar. 2015. Study of radon concentration and toxic elements in drinking and irrigated water and its implications in Sungai Petani, Kedah, Malaysia. Journal of Radiation Research and Applied Sciences 8: 294–299
3- Charles, M. 2001. Unscear Report. 2000: Sources and effects of ionizing radiation. Journal of Radiological Protection 21: 83-85.
4- Espahbod, M. 1993. The use of new techniques in geology. Twenty-sixth Geological Congress in Iran. Iran.
5- Hamza, V. Z., and M. N. Mohankumar. 2009. Cytogenetic damage in human blood lymphocytes exposed in vitro to radon. Mutation research 661: 1–9.
6- Jalili, A., Behtash, A., and D. Rezaei Ochbelagh. 2012. Radon concentration in hot springs of the touristic city of Sarein and methods to reduce radon in water. Radiation physics and chemistry 81:7.749-757
7-Janet, A. A. 2014. Estimation of annual effective dose due to ingestion of natural radionuclides in cattle in Tin mining area of Jos plateau, Nigeria. Natural science 6: 255-261
8- Kelly, A. L., Tiernan, D., Osulivan, C. and P. Joycet. 2000. Correlation between bovine milk Somatic cell count and Polymorphonuclear leukocyte level for samples of bulk milk and milk from individual cows. Journal of Dairy science 88: 300-304.
9- Laxen, D. P. H and R. M. Harrison. 1981. Cleaning methods for polyethene containers prior to the determination of trace metals in freshwater samples. Analytical chemistry 53: 345.
10- Lindell, B. 1968. Ingested radon as a source of human radiation exposure. Proceedings of International Congress on Radiation Protection, Rome.
11- Mansourbahmani, M., Heravi Moussavi, A., Vakili, A., Rezaie, M., Dehghan, H. and H. Rezvan Najad. 2014. The daily Radon dose in body organs cuased by drinking milk and water. Journal of radioanalitical and nuclear Chemistry 3: 653-657
12- Osibote, O. A., Olomo. J. B., Tchokossa. P and F. A. Balogun. 1999. Radioactivity in milk consumed in Nigeria 10 years after Chernobly reactor accident. Nuclear instruments and methods in physics 8: 422, 778.
13- Pecaut, M. J., Gridley, D. S., Smith, A. L., and G. A. Nelson. 2002. Dose and dose rate effects of whole-body proton-irradiation on lymphocyte blastogenesis and hematological variables. Immunology Letters. 80: 67–73.
14- Poorhabib, Z., Binesh, A and S. Mohammadi. 2011. Investigation of heavy radioactive radon and radium in rivers and drinking water Ramsar BydevicesPRASSI. Iranian journal of physics research 11: 397 -403.
15- Smit, L. E., and H. C. Schonfeldt. 2000. The effect of locality and season on the composition of South African whole milk. J. Composition and Analysis13: 345-367.
16- Ruegg, P. L. 2001. Milk secretion and quality standards. University of Wisconsin, Madison, USA. http://www.uwex.edu/Milk Quality/pdf/milksecretionand qualitystandards.
17-Vali nejad, H., Rezaie, D., and M. Alighadri. 2013. Determine the amount of radon and thoron in the soil and its changes at different depths. Paper physics conference of Iran.
18- Welenberg, G. J., Vanderpoel, W. H. M. and J. T. Van Oirschot. 2002. Viral infections and bovine mastitis. Veterinary Microbiology 88:27-45.