Isam Kadim, Yahia Othman, A. A. A. A. A. S. (2009) “Chemical constituents and heavy metals contents of barley fodder produced under hydroponic system in GCC countries using tertiary treated sewage effluents”, Journal of Phytology, 1(6). Available at: https://updatepublishing.com/journal/index.php/jp/article/view/2046 (Accessed: 15 May 2024).