H2O2-Modified Geopolymers as Integrated Adsorbent-Catalysts for FFA Removal and Biodiesel Production from Crude Palm Oil. Indonesian Journal of Science and Technology, [S. l.], v. 10, n. 1, p. 113–132, 2025. Disponível em: https://ejournal.kjpupi.id/index.php/ijost/article/view/409.. Acesso em: 15 jul. 2025.