S. Kumar and B.P. Bhatt, S.K. Naik, S. Maurya, Ritesh Kumar, K. Sadhna, S. Gagrai,. “Evaluation of Phosphate Solubilizing Fungi on the Mobilization of Inorganic Phosphate”. Journal of the Indian Society of Soil Science, vol. 61, no. 3, Dec. 2013, https://epubs.icar.org.in/index.php/JISSS/article/view/35633.