Danya, U., M. Udhayasankar, K. Arumugasamy, and D. Punitha. “An Efficient Protocol Devised for Rapid Callus Induction from Leaf Explants of Stephania Wightii (Arn.) Dunn. - an Endemic Medicinal Plant”. Research in Plant Biology, vol. 2, no. 5, Oct. 2012, https://updatepublishing.com/journal/index.php/ripb/article/view/2542.