“Identifying Tannin Compounds in Black Tea Extract Camellia Sinensis and the Effect of Temperature on the Amount of Protein Precipitant Tannin”. University of Thi-Qar Journal of Science 1, no. 4 (May 14, 2009): 51–57. Accessed December 26, 2024. http://mail.jsci.utq.edu.iq/index.php/main/article/view/221.