Ahmed Mohammed, A. L. L. “Batch Adsorption Technique for the Removal of Reactive Black 5 Dye from Industrial Waste Water by Using Rice Husks As Adsorbent”. Al-Qadisiyah Journal of Pure Science, Vol. 20, no. 1, July 2017, pp. 132-47, https://journalsc.qu.edu.iq/index.php/JOPS/article/view/88.