1. Abd-Alla, M. H., Elenany, A. E., Ramadan, T., Zohri, E. M., & Nafady, I. M. (2017). Nodulation and nitrogen fixation of some wild legumes from differing habitats in Egypt. European Journal of Biological Research, 7(1), 9–21.
2. Abdel Ghany, T. M., Alawlaqi, M. M., & Al Abboud, M. A. (2013). Role of biofertilizers in agriculture: A brief review. Mycopathology, 11(2), 95–101.
3. Abeles, F. B., Morgan, P. W., & Saltveit, M. E. J. (1992). Ethylene in plant biology (pp. 26–55). San Diego: Academic.
4. Abou-Shanab, R. A. I., Angle, J. S., & Chaney, R. L. (2006). Bacterial inoculants affecting nickel uptake by Alyssum murale from low, moderate and high Ni soils. Soil Biology and Biochemistry, 38, 2882–2889.
5. Adesemoye, A. O., Obini, M., & Ugoji, E. O. (2008). Comparison of plant growth promotion with Pseudomonas aeruginosa and Bacillus subtilis in three vegetables. Brazilian Journal of Microbiology, 39, 423–442.