Al-Gheethi A. Establish In-House: A Pre-treatment Method of Fat, Oil and Grease (FOG) in Kitchen Wastewater for Safe Disposal. IJIE [Internet]. 2019 May 6 [cited 2026 Apr. 7];11(2). Available from: https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/4262