Rai, Mahendra, and Ajit Varma. 2005. “Arbuscular Mycorrhiza-Like Biotechnological Potential of Piriformospora Indica, Which Promotes the Growth of Adhatoda Vasica Nees”. Electronic Journal of Biotechnology 8 (1). Valparaíso, Chile:0-0. https://www.ejbiotechnology.info/index.php/ejbiotechnology/article/view/v8n1-5.