Ngoma, L., B. Esau, and O. O. Babalola. “Isolation and Characterization of Beneficial Indigenous Endophytic Bacteria for Plant Growth Promoting Activity in Molelwane Farm, Mafikeng, South Africa”. African Journal of Biotechnology, vol. 12, no. 26, Mar. 2016, doi:10.4314/ajb.v12i26.