Pemanfaatan Karbon Aktif Ampas dalam Mereduksi Asam Lemak Bebas (Free Fatty Acid) pada Minyak Goreng Bekas sebagai Biodiesel: The Utilization of Waste Activated Carbon in Reducing Free Fatty Acid in Used Cooking Oil as Biodiesel. Talenta Conference Series: Science and Technology (ST), [S. l.], v. 2, n. 1, p. 124–128, 2019. DOI: 10.32734/st.v2i1.329. Disponível em: https://talentaconfseries.usu.ac.id/index.php/st/article/view/329. Acesso em: 1 may. 2026.