Shahrulzaman M, Harun H. Performance of Magnetic Palm Oil Empty Fruit Bunch Biochar for Removal of Waste Cooking Oil. peat [Internet]. 2021 Dec. 2 [cited 2024 Jul. 18];2(2):065–074. Available from: https://penerbit.uthm.edu.my/periodicals/index.php/peat/article/view/870