[1]International Atomic Energy Agency (IAEA)‚ " The Environment Behavior of Radium ", Technical Reports Series, Vol.1‚ No.310‚ p.192, Vienna , (1990).
[2].Argonne National Laboratory, EVS, " Natural Decay Series: Uranium, Radium and Thorium ", Human Health Fact Sheet, August (2005).
[3].Wise Uranium Project., " Uranium Radiation Properties ", 26 May, Vienna, (2002).
[4].Cliff K.D., " Postgraduate Radiological Protection Course ", Lec. L173, Harwel, G. Britain, (1982).
[5]غسان عبدالله علی، " الرادون وتأثیره على البیئة والإنسان "، نشرة الذرة والتنمیة ، المجلد(11)، العدد(33)، (1993).
[6].Jonsson G., " Radon Gas Wherefromand What to Do ", Radiat. Meas., Vol.25, No.1-4, pp. 537-546, (1995).
[7]خالد عبید الأحمد، " مقدمة فی الفیزیاء الصحیة "، وزارة التعلیم العالی والبحث العلمی، جامعة الموصل، (1993).
[8].Juan M. B., María A. B., Alberto R.R., and Adolfo F., " American Journal of Epidemiology ", Vol.156, No.6, pp.548-555, (2002).
[9]عبدالعزیز عمر بازهیر، " تحدید تراکیز الیورانیوم فی نماذج الصخور الیمنیة باستخدام تقنیات نوویة "، أطروحة دکتوراه، جامعة بغداد، کلیة التربیة (ابن الهیثم)، (2000).
[10]. Durrani S. A. and Bull R. K, " Solid State Nuclear Track Detection Principles, Methods and Application ", New York, (1987).
[11].Fleischer R. L. and Campero A. M., " Mapping of Integrated Radon Emanation for Detection of Long – Distance Migration of Gases Within the Earth: Techniques and Principles ", Journal of Geophysical Research, Vol.83, No.137, pp.3539-3548, (1978).
[12].Najeba F. S., " Measurement of Radon and Thoron Concentration in Iraqi Kurdistan Region Soils using CR-39 Plastic Track Detector ", M.Sc. Thesis, University of Koya, College of Science, (2008). [13]. O. M. EL–Ghossain, and Read M. Abu Saleh, " Radiation Measurement in Soil in the middle of Gaze – Strip Using different type of Detector ", The Islamic University Journal (Series of Natural Studies and Engineering), Vol.15, No.1, pp.23-27, (2007).
[14].Michalaras Tzortzis and Haralabos Tsertos, " Determination of Thorium, Uranium, and Potassium elemental Concentrations in Surface Soil in Cyprus ", Department of Physics, University of Cyprus, P. O. Box.20537, (2004).
[15].World Health Organization (WHO), " Guidelines for Drinking-Water Quality ", 2nd., Geneva, (1993).
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