ZHU, KAI-CHENG, CHUN-HUI MA, MING-SONG FAN, GUAN YE, and CHENG-GANG HUANG. 2010. “Xanthones from Triperospermum Chinense (Migo)”. Asian Journal of Chemistry 19 (3):1739-42. https://asianpubs.org/index.php/ajchem/article/view/13735.