Ibrahim, Shahrul Shafendy, Ab. Aziz Abdul Latiff, and Zawawi Daud. “Preliminary Study: Treatment of Food Industrial Wastewater Using Two-Phase Anaerobic Treatments”. International Journal of Integrated Engineering 5, no. 1 (November 18, 2013). Accessed May 1, 2024. https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/766.