“Adsorption of Hexavalent Chromium Ion from Aqueous Solution by Sodium Alginate and Carboxymethyl Cellulose Beads: Kinetics and Isotherm Studies”. Al-Nahrain Journal of Science, vol. 18, no. 4, June 2018, pp. 40-48, https://anjs.edu.iq/index.php/anjs/article/view/283.