Keneni, Asefa. “Review on Potentials of Rhizobia-Leguminous Plants Symbiotic Nitrogen Fixation for Sustainable Agriculture”. Journal of Science and Sustainable Development 6, no. 2 (July 3, 2018): 1-15. Accessed April 25, 2024. https://aujssd.ethernet.edu.et/index.php/jssd/article/view/85.