1. Bhatti, T. M., Phosphate fertilizers a potential source for Uranium recovery as by product. A technical report no Paec/NIBGE-2/1994. National institute for biotechnology and genetic engineering (NIBGE), Faisalabad, 1994
2. Brady, N. C., the nature and properties of soils,10th Ed., Macmillan Publisher London, 243–246, 1990
3. Hussain, A., Determination of uranium and thorium concentration in rock samples. J. of radio analytical and Nuclear physics, 188(4): 255–265, 1994
4. IAEA, Measurement of radionuclides in food and environment. Technical reports series, (295), 1989
5. Akhtar, N., M. Ashraf Chaudhry, M. Tifail, M. Mohsin Iqbal and S. D. Orfi, Radiometric and chemical analysis of saline soil samples of Pacca Anna, Faisalabad, J. of Research, 14(1): 49–59, 2003