Ahmad, D. G., and T. A.-R. A. Gaf. “Lead, Nickel and Copper Concentration and Related Factors in Some Uncooked Vegetables Irrigated by Wastewater”. Journal of Advanced Laboratory Research in Biology (eISSN: 0976-7614) Is Continuned by Advances in BioScience (eISSN: 2583-0058)., vol. 3, no. 3, July 2012, pp. 224-30, https://e-journal.sospublication.co.in/index.php/jalrb/article/view/130.