G. KRANTHI KUMAR, and M. RAGHU RAM. “Characterization of Agrobacterium Tumefaciens Strains Isolated from Root Nodules of Vigna Trilobata (l) Verdc. Cultivars”. International Journal of Pharma and Bio Sciences, vol. 7, no. 4, Dec. 2016, pp. 532-9, https://ijpbs.net/index.php/journal/article/view/5514.