Anand, Kumar, et al. “PHOSPHATE SOLUBILIZING MICROBES: AN EFFECTIVE AND ALTERNATIVE APPROACH AS BIOFERTILIZERS”. International Journal of Pharmacy and Pharmaceutical Sciences, vol. 8, no. 2, Feb. 2016, pp. 37-40, https://www.journals.innovareacademics.in/index.php/ijpps/article/view/9747.