SYNTHESIS OF FATTY ACIDS METHYL ESTERS FROM USED VEGETABLE OIL USING ACTIVATED ANTHILL AS CATALYST. Nigerian Journal of Technology, [S. l.], v. 39, n. 1, p. 140–147, 2020. Disponível em: https://nijotech.com/index.php/nijotech/article/view/2229. Acesso em: 16 apr. 2026.