Cho, Min H., Byoung I, Je, Seetharaman Rajasekar, Hye M. Kang, Sun Y. Park, and Young W. Choi. β€œIn Vitro Anticancer Activity of Hexane and Ethyl Acetate Extracts of Leaf, Petiole and Rhizome of Petasites Japonicus: Http: www.doi.org 10.26538 Tjnpr V7i1.18”. Tropical Journal of Natural Product Research (TJNPR) 7, no. 1 (February 1, 2023): 2213–2217. Accessed May 4, 2024. https://tjnpr.org/index.php/home/article/view/1565.