1- Nickless, G.M., "Pollution of Soil by Lead," Environ. Research, 104 ,315, (2007)
2- Nevin, R., "Toxicity of Lead." Environ. Research, 83, 115, (2000)
3- Needleman, H.A., "The Biochemistry of Lead in Human ", Rev. Med., 55, 209, (2004)
4- Martin, H.M., "Heavy Metals in Plant", Environ. Pollute, 134, 217, (2005)
5- Caravanos, J. and Wiess, A., "Toxic Effect of Lead on Plant ". Environ. Research, 100, 165, (2006)
6- Young, T.M. and Ashbaugh, L.L., "Resuspention of Soil as a Source of Air ", Environmental Science and Technology, 36, 2484, (2005)
7- Awofolu, O.R., "Level of Lead in Commercial Food", Journal of Applied Science and Environment, 8, 23, (2004)
8- Braun, M.C. and Kachw, A.H., "Environmental Lead Contamination", Environmental resource, 88, 164, (2002)
9- Dierkers, B.E. and Geiger, W.F., "Pollution of Soil", Water Science and Technology, 39, 201, (1999)
10- Jackson, M.M., "Risk Assessment in Dar-es-Salam", Environmental Monitoring and Assessment, 104, 385, (2005)
11-Kabala, C. and Singh, B.R., "Mobility of Lead in Soil", Journal of Environmental Quality, 30, 485, (2001)
12- Kelderman, P. and Khans, D.H., "Lead in Soil Environmental" Archives of Environmental Health, 59, 31, (2004)
13- Nordic, W.C. "Lead Review" http//www.norden.org/milijoe/uk/NMR – lead. Pdf [2005, Aug.2]
14- Kuis, F. "Environmental Chemistry ", (8th ed) , CRC Press, Inc, Florida, (2005) 15-Petrosyan , V. and Orlova , A. "Enuvermental Recourse" 94,297(2004).
16-U.S.EPA " Report on Use of Alkyl-Lead in Automotive Gasoline" htt://www.epa.gov/glnpo/bns/lead/challenge report/challenge.p.d.f.[2005,July,30].
17-Tong , S. and Prapamontal , T. " Environmental Lead Exposure" Bulletin of the world health Organization,78,1068,(2000).
18-Saileh , K. M. " Concentration of Heavy Metals in Soil: Journal of Environmental science Health , 36 , 765,2001.
19-Reilly ,C. "Metal Contamination of food" Blackwell Science oxford , p. 145,(2002).
20-Popek , E.P., " Sampling and Analysis of Environment Chemical Pollutants " Academic Press , San Diego , P.312,(2003).
21-Pierzynski , G. M. and Sims , J. T., " Soil and Environmental Quality" (2nd ed) , CRC Press , Danvers , P.92,(2000).
)
