Dhandayuthapani Kandavel, Soundarapandian Sekar* and. 2010. “Interaction of Plant Growth Promoting Rhizobacteria (PGPR) and Endophytes With Medicinal Plants – New Avenues for Phytochemicals”. Journal of Phytology 2 (7). https://updatepublishing.com/journal/index.php/jp/article/view/2164.