“Cytotoxic Constituents from Vietnamese Pterospermum Truncatolobatum Gagnep”. Indian Journal of Natural Products and Resources (IJNPR) [Formerly Natural Product Radiance (NPR)], vol. 13, no. 1, Sept. 2023, pp. 32-35, https://or.niscpr.res.in/index.php/IJNPR/article/view/3189.