Zou, Y., Qi, G., Xu, T., Cheng, S.- xiang, Liu, T.- ting and Huang, Y.- fang 2016. OPTIMAL EXTRACTION PARAMETERS OF THEABROWNIN FROM SICHUAN DARK TEA. African Journal of Traditional, Complementary and Alternative Medicines. 13, 3 (Mar. 2016), 191–196. DOI:https://doi.org/10.21010/ajtcam.v13i3.22.