Aliwarga, Lienda, Setyo Widodo, Novika Suwardana, Hanna Darmawan, Khoiruddin Khoiruddin, and I Gede Wenten. “Impurity Removal of Waste Cooking Oil Using Hydrophobic Polypropylene Hollow Fiber Membrane”. Journal of Engineering and Technological Sciences 51, no. 2 (April 30, 2019): 216-230. Accessed September 2, 2025. https://journals.itb.ac.id/index.php/jets/article/view/9892.