Hassoon Ali, A. ., Ghali Attia, H. ., & Faisal Muhaisan, F. . (2014). Modification Of The Granular Activated Carbon And Its Effect On Removal Of Cr(VI) From Aqueous Solution In Batch And Fixed-Bed Systems. Journal of Engineering and Sustainable Development, 18(1), 78-94. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/851