Methods for Extraction and Characterization of Tannins from Some Acacia Species of Sudan. Pakistan Journal of Analytical & Environmental Chemistry, Pakistan, v. 17, n. 1, p. 43 – 49, 2016. DOI: 10.21743/pjaec/2016.06.007. Disponível em: http://pjaec.pk/index.php/pjaec/article/view/242. Acesso em: 12 jul. 2025.