FRIDAY, O. N.; MUHAMMAD, M. M. Isolation and Physicochemical Characterization of Lignin from <i>Chromolaena Odorata</i> and <i>Tithonia Diversifolia</i>. Journal of Applied Sciences and Environmental Management, [S. l.], v. 19, n. 4, p. 787–792, 2016. DOI: 10.4314/jasem.v19i4.28. Disponível em: https://www.ajol.info/index.php/jasem/article/view/131252. Acesso em: 26 sep. 2026.