Isam Eldin Hussein Elgailani, and Christina Yacoub Ishak , trans. “Methods for Extraction and Characterization of Tannins from Some Acacia Species of Sudan”. Pakistan Journal of Analytical & Environmental Chemistry 17, no. 1 (January 1, 2016): 43 – 49. Accessed July 12, 2025. http://pjaec.pk/index.php/pjaec/article/view/242.