S. O. Ouma, E. N. Magiri, V. N. Matiru, J. Mugweru, and C. N. Ngamau, “Evaluation of Nitrogen Fixation Ability of Endophytic Bacteria in Kenyan Bananas (Musa Spp.) Using Biochemical and Molecular Techniques”, theijst, vol. 2, no. 13, Dec. 2014.