Chan, Eric W.C., Siu K. Wong, and Hung T. Chan. “Ferruginol and Sugiol: A Short Review of Their Chemistry, Sources, Contents, Pharmacological Properties and Patents: Http: .www.doi.org 10.26538 Tjnpr V7i2.4”. Tropical Journal of Natural Product Research (TJNPR) 7, no. 2 (February 28, 2023): 2325–2336. Accessed April 27, 2024. https://tjnpr.org/index.php/home/article/view/1616.