AZZAHRO, U. L.; BROTO, W. Utilization of Waste Shells as CaO Catalyst in Biodiesel Production from Used Cooking Oil . Acta Chimica Asiana, [S. l.], v. 5, n. 1, p. 147–152, 2022. DOI: 10.29303/aca.v5i1.69. Disponível em: http://aca.unram.ac.id/index.php/ACA/article/view/69. Acesso em: 25 apr. 2024.