BENHAMOUDA, K, et al. “FACTORS INFLUENCING THE PHOTOCATALYTIC DECOLORIZATION OF METHYLENE BLUE IN THE PRESENCE OF NATURAL IRON OXIDE AND OXALIC ACID UNDER UV IRRADIATION”. Sciences & Technology. A, Exactes Sciences, no. 39, June 2014, pp. 61-66, https://revue.umc.edu.dz/a/article/view/600.