High-Performance of Catalyst Synthesized from Waste Can Aluminum and Rice Husk Silica for Conversion Coconut Oil into Biodiesel. The Eurasia Proceedings of Science, Technology, Engineering and Mathematics, [S. l.], v. 34, p. 31–42, 2025. DOI: 10.55549/epstem.1753116. Disponível em: https://epstem.net/index.php/epstem/article/view/1070. Acesso em: 19 jan. 2026.