Umoh, I. J. ., O. A. . Eseyin, and A. A. . Ahmadu. “Phytosterol from the Leaves of Vernonia Conferta Benth (Asteraceae)”. Nigerian Journal of Pharmaceutical and Applied Science Research, vol. 5, no. 3, Aug. 2020, pp. 16-17, https://nijophasr.net/index.php/nijophasr/article/view/139.