J. E. Marcovecchio, S. E. Botte and R. H. Freije, “Heavy Metals, Major Metals, Trace Elements”. In: L. M. Nollet, Ed., Handbook of Water Analysis, 2nd Edition, CRC Press, London, 2007, pp. 275-311.
 A. T. Batayneh, “Heavy Metals in Water Springs of the Yarmouk Basin, North Jordan and Their Potentiality in Health Risk Assessment,” International Journal of the Physical Sciences, Vol. 5, No. 7, 2010, pp. 997-1003.
 N. Abderahman and Y. Abu-Rukah, “An Assessment Study of Heavy Metal Distribution within Soil in Upper Course of Zarqa River Basin/Jordan,” Environmental Geology, Vol. 49, No. 8, 2006, pp. 1116-1124.
 I. Adekunle, M. Adetunji, A. Gbadebo and O. Banjoko, “Assessment of Groundwater Quality in a Typical Rural Settlement in Southwest Nigeria,” International Journal of Environmental Research and Public Health, Vol. 4, No. 4, 2007, pp. 307-318.
 H. Roberts, “Lead Poisoning,” 2013.
 T. A. Laniyan, O. O. K. Phillips and L. Elesha “Hazards of Heavy Metal Contamination on the Ground-Water around a Municipal Dumpsite in Lagos, South-Western Nigeria,” International Journal of Engineering & Technology, Vol. 11, No. 1, 2011, pp. 61-69.
 O. T. Oyeku and A. O. Eludoyin, “Heavy Metal Contamination of Groundwater Resources in a Nigerian Urban Settlement,” African Journal of Environmental Science and Technology, Vol. 4, No. 4, 2010, pp. 201-214.
 O. Momot and B. Synzynys, “Toxic Aluminium and Heavy Metals in Groundwater of Middle Russia: Health Risk Assessment,” International Journal of Environmental Research and Public Health, Vol. 2, No. 2, 2005, pp. 214-218. http://dx.doi.org/10.3390/ijerph2005020003
 M. A. Iqbal and S. G. Gupta, “Studies on Heavy Metal Ion Pollution of Ground Water Sources as an Effect of Municipal Solid Waste Dumping,” African Journal of Basic & Applied Sciences, Vol. 1, No. 5-6, 2009, pp. 117-122.
 R. Gutierrez, H. Rubio-Arias, R. Quintana, J. Ortega and M. Gutierrez, “Heavy Metals in Water of the San Pedro River in Chihuahua, Mexico and Its Potential Health Risk,” International Journal of Environmental Research and Public Health, Vol. 5, No. 2, 2008, pp. 91-98.
 D. Kar, P. Sur, S. Mandal, et al., “Assessment of Heavy Metal Pollution in Surface Water,” International Journal of Environmental Science and Technology, Vol. 5, No. 4, 2008, pp. 119-124.
 C. Voica, M. H. Kovacs, A. Dehelean, D. Ristoiu and A. Iordache, “ICP-MS Determinations of Heavy Metals in Surface Waters from Transylvania,” Romanian Journal of Physics, Vol. 57, No. 6-7, 2012, pp. 1184-1193.
 I. Ismail and I. Mat Saleh, “Analysis of Heavy Metals in Water and Fish (Tilapia sp.) Samples from Ttasik Mutiara, Puchong,” The Malaysian Journal of Analytical Sciences, Vol. 16, No. 3, 2012, pp. 346-352.
 M. Ghanem, S. Samhan, E. Carlier and A. Wasim, “Groundwater Pollution Due to Pesticides and Heavy Metals in North West Bank,” Journal of Environmental Protection, Vol. 2, No. 4, 2011, pp. 429-434.
 Y. El-Nahhal, “Contamination of Groundwater with Heavy Metals in Gaza Strip,” 10th International Water Technology Conference, Alexandria, 23-25 March 2006, pp. 1139-1150.
 PWA, “Data Review on the West Bank Aquifers,” Working Report SUSMAQ-MOD # 02 V2.0, Sustainable Management of the West Bank and Gaza Aquifers, Water Resources and Planning Department, Palestinian Water Authority, Palestine, 2001.
 D. J. Scarpa, “Eastward Groundwater Flow from the Mountain Aquifer,” In: J. Isaac and H. Shuval, Eds., Water for Peace in the Middle East, Elsevier Science Publications, Amsterdam, 1994, pp. 193-203.
 A. A. Adepoju-Bello, O. O. Ojomolade, G. A. Ayoola and H. A. B. Coker, “Quantitative Analysis of Some Toxic Metals in Domestic Water Obtained from Lagos Metropolis,” Nigerian Journal of Pharmacy, Vol. 42, No. 1, 2009, pp. 57-60.
 O. Adeyemi, O. B. Oloyede and A. T. Oladiji, “Physicochemical and Microbial Characteristics of Leachate Contaminated Ground Water,” Asian Journal of Biochemistry, Vol. 2, No. 5, 2007, pp. 343-348.
 I. O. Igwilo, O. J. Afonne, U. J. Maduabuchi and O. E. Orisakwe, “Toxicological Study of the Anam River in Otuocha, Anambra State, Nigeria,” Archives of Environmental & Occupational Health, Vol. 61, No. 5, 2006, pp. 205-208. http://dx.doi.org/10.3200/AEOH.61.5.205-208