Sajid, M., M. Irfan Ahmad, S. Salman Shafqat, M. Kamal Pasha, and M. Asim. “De-Colorization of Azo Dyes C.B-10X Blue and C.B.M-10X Blue by Ozonation for Wastewater Treatment”. University of Wah Journal of Science and Technology (UWJST), Vol. 4, Dec. 2020, pp. 1-7, https://uwjst.org.pk/index.php/uwjst/article/view/49.