Chennu MM Prasada Rao, and T. Rajewsari. “Review on Biological Ni-Trogen fixation(bnf) in Soil Management”. International Journal of Pharmaceutics and Drug Analysis 7, no. 8 (August 18, 2019): 46-50. Accessed June 27, 2026. https://www.ijpda.org/index.php/journal/article/view/423.