A. Bello, Isaac, et al. “Antibacterial Activity of a Triterpenoid from N-Butanol Extract of the Root Bark of Ficus Sycomorus (Linn): doi.org 10.26538 Tjnpr V2i10.3”. Tropical Journal of Natural Product Research (TJNPR), vol. 2, no. 10, Oct. 2018, pp. 452-5, https://tjnpr.org/index.php/home/article/view/848.