HASNAIN, S. A. .; SIDDIQUE, M. .; KHAN, G. .; ABASS, A. .; ABUBAKAR, A. M. . Greener pretreatment and the characterization of neem and babul tree barks for lignin extraction . International Journal of Sustainable Energy and Environmental Research, [S. l.], v. 14, n. 2, p. 90–103, 2025. DOI: 10.18488/13.v14i2.4555. Disponível em: https://www.archive.conscientiabeam.com/index.php/13/article/view/4555. Acesso em: 16 dec. 2025.