Singh, I. (2018) “Plant Growth Promoting Rhizobacteria (PGPR) and their various mechanisms for plant growth enhancement in stressful conditions: a review”, European Journal of Biological Research, 8(4), pp. 191-213. Available at: http://www.journals.tmkarpinski.com/index.php/ejbr/article/view/90 (Accessed: 20April2024).