Yakubu, M. T., T. M. Yakubu, A. O. T. Ashafa, and A. J. Afolayan. “ANTIMICROBIAL ACTIVITY OF THE SOLVENT FRACTIONS FROM BULBINE NATALENSIS TUBER”. African Journal of Traditional, Complementary and Alternative Medicines, vol. 9, no. 4, May 2012, pp. 459-64, https://athmsi.org/journals/index.php/ajtcam/article/view/1060.