ZAHID ALI, et al. “EFFICIENT REGENERATION AND HIGH ESCULIN CONTENT IN CICHORIUM INTYBUS L., A POTENT MEDICINAL PLANT”. International Journal of Pharma and Bio Sciences, vol. 4, no. 3, Sept. 2013, pp. 1333-40, https://ijpbs.net/index.php/journal/article/view/2711.