Zhou, X.- rong, J.- hua Wang, B. Jiang, J. Shang, and C.- qiong Zhao. “A STUDY ON EXTRACTION PROCESS AND IN VITRO ANTIOXIDANT ACTIVITY OF TOTAL PHENOLS FROM RHIZOMA IMPERATAE”. African Journal of Traditional, Complementary and Alternative Medicines, vol. 10, no. 4, Apr. 2013, pp. 175-8, https://journals.athmsi.org/index.php/ajtcam/article/view/1856.