USED FRYING OIL BIODIESEL PRODUCTION: EXPERIMENTAL FACTORIAL DESIGN AND MULTIVARIATE ANALYSIS. Tecno-Lógica, [S. l.], v. 13, n. 1, p. 19–24, 2009. DOI: 10.17058/tecnolog.v13i1.924. Disponível em: https://seer.unisc.br/index.php/tecnologica/article/view/924. Acesso em: 25 ago. 2025.