Iwegbue, C.M., Nwozo, S.O., Ossai, E.K. and Nwajei, G.E. (2008) Heavy metal composition of some imported canned fruit drinks in Nigeria. American Journal of Food Technology, 3, 220-223.
 Rezaei, M., et al. (2013) A survey of microbial total count and prevalence of Escherichia coliin raw milk in Markazi Province, Iran. Research Opinions in Animal and Veterinary Sciences, 3, 474-477.
 Teimoory, H., et al. (2013) Antibacterial activity of Myrtus communis L. and Zingiber officinalerose extracts against some Gram positive pathogens. Research Opinions in Animal and Veterinary Sciences, 3, 478-481.
 Namihira, D., Saldivar, L., Pustilnik, N., Carreón, G.J. and Salinas, M.E. (1993) Lead in human blood and milk from nursing women living near a smelter in Mexico City. Journal of Toxicology and Environmental Health, 38, 225-232.
 Isaac, C.P., Sivakumar, A. and Kumar, C.R. (2012) Lead levels in breast milk, blood plasma and intelligence quotient: A health hazard for women and infants. Bulletin of Environmental Contamination and Toxicology, 88, 145-149.
 Malhat, F., Hagag, M., Saber, A. and Fayz, A.E. (2012) Contamination of cows milk by heavy metal in Egypt. Bulletin of Environmental Contamination and Toxicology, 88, 611-613.
 Afridi, H.I., Kazi, T.G., Kazi, N.G., Jamali, M.K., Arain, M.B., Sirajuddin, Baig, J.A., Kandhro, G.A., Wadhwa, S.K. and Shah, A.Q. (2010) Evaluation of cadmium, lead, nickel and zinc status in biological samples of smokers and nonsmokers hypertensive patients. Journal of Human Hypertension, 24, 34-43.
 Jalbani, N., Kazi, T.G. and Hassan, I. (2009) Determination of toxic metals in different brand of chocolates and candies, marketed in Pakistan. Pakistan Journal of Analytical & Environmental Chemistry, 10, 48-52.
 Anastasio, A., Caggiano, R., Macchiato, M., Paolo, C., Ragosta, M., Paino, S. and Cortesi, M.L. (2006) Heavy metal concentrations in dairy products from sheep milk collected in two regions of southern Italy. Acta Veterinaria Scandinavica, 47, 69.
 Kazi, T.G., Jalbani, N., Baig, J.A., Kandhro, G.A., Afridi, H.I., Arain, M.B., Jamali, M.K. and Shah, A.Q. (2009) Assessment of toxic metals in raw and processed milk samples using electrothermal atomic absorption spectrophotometer. Food and Chemical Toxicology, 47, 2163-2169.
 Tajkarimi, M., Ahmadi Faghih, M., Poursoltani, H., Salah Nejad, A., Motallebi, A.A. and Mahdavi, H. (2008) Lead residue levels in raw milk from different regions of Iran. Food Control, 19, 495-498.
 Gradinaru, A.-C. Popescu, O. and Solcan, G. (2011) Variation analysis of heavy metal residues in milk and their incidence in milk products from Moldavia, Romania. Environmental Engineering and Management Journal, 10, 1445-1450.
 Javed, I., I. Jan, Muhammad, F., Ziaur-Rahman, Zargham Khan, M., Aslam, B. and Sultan, J.I. (2009) Heavy metal residues in the milk of cattle and goats during winter season. Bulletin of Environmental Contamination and Toxicology, 82, 616-620.
 Pilarczyk, R., Wójcik, J., Czerniak, P., Sablik, P., Pilarczyk, B. and Tomza-Marciniak, A. (2013) Concentrations of toxic heavy metals and trace elements in raw milk of Simmental and Holstein-Friesian cows from organic farm. Environmental Monitoring and Assessment, 185, 8383-8392.
 Al-Saleh, I., Shinwari, N. and Mashhour, A. (2003) Heavy metal concentrations in the breast milk of Saudi women. Biological Trace Element Research, 96, 21-37.