N. A. Razali. “Treatment of O3 With Na2S2O8 by ANOVA Interpretation towards Degradation of Azo Dye”. Applied Mathematics and Computational Intelligence (AMCI), vol. 7, no. 1, Dec. 2018, pp. 47-58, https://ejournal.unimap.edu.my/index.php/amci/article/view/168.