Lu, H.T., Y.L. Zou, R. Deng, and H. Shan. 2013. “Extraction, Purification and Antiradical Activities of Alpinetin and Cardamomin from Alpinia Katsumadai Hayata”. Asian Journal of Chemistry 25 (17):9503-7. https://doi.org/10.14233/ajchem.2013.15046.