Qi-Qian, Li, Li Jun-Sheng, Lu Yan, Huang Guo-Xia, and Yan Liu-Juan. 2010. “Spectroscopic Studies on the Interaction of Aloe-Emodin and DNA”. Asian Journal of Chemistry 23 (3):1123-28. https://asianpubs.org/index.php/ajchem/article/view/16042.