Tran, Linh T. T., et al. “Cytotoxic Activity of Compounds from Vietnamese Goniothalamus Elegans Ast: Http: www.doi.org 10.26538 Tjnpr V7i7.31”. Tropical Journal of Natural Product Research (TJNPR), vol. 7, no. 7, July 2023, pp. 3496-01, https://tjnpr.org/index.php/home/article/view/2252.