Shrivastava, Umesh Prasad. “Isolation and Characterization of Plant Growth Promoting Rhizobacteria (PGPR) from Rice Rhizosphere of Varanasi and East Champaran District of India”. Academic Voices: A Multidisciplinary Journal 3, no. 1 (March 9, 2014): 81–90. Accessed April 23, 2024. https://www.nepjol.info/index.php/AV/article/view/9542.