Rosli, Nurliza, Puziah Abdul Latif, and Sidek Aziz. “Reduction of Organic Compounds in Palm Oil Mill Effluent Using Ultrasonic Irradiation With and Without Activated Carbon Addition”. Asian Journal of Chemistry 22, no. 9 (July 9, 2010): 7005–7012. Accessed November 25, 2024. https://asianpubs.org/index.php/ajchem/article/view/11941.