Hamdan MAH, Hairom NHH, Zaiton N, et al. Photocatalytic Degradation of Synthetic Sulfur Pollutants in Petroleum Fractions under Different pH and Photocatalyst . emait. 2021;2(1):30-38. Accessed July 17, 2024. https://penerbit.uthm.edu.my/ojs/index.php/emait/article/view/8705