S. S. KOLEKAR, P. D. DESAI, H. K. PANCHAL, and K. B. SHAH. 2017. “Study of Phosphate Solubilizing Microorganisms With Biofertilizer Potential”. International Journal of Pharma and Bio Sciences 8 (2):750-56. https://ijpbs.net/index.php/journal/article/view/5921.