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. DOI: 10.17509/ijost.v10i1.80968. Disponível em: https://ijost.upi.edu/index.php/ijost/article/view/443. Acesso em: 23 jul. 2026.