M. Maharajan, A. B. A. Ahmed, R. M. Taha, S. Jawahar, R. R. Paul, and M. Jayaseelan, “In vitro Mass Propagation from Shoot Tip Explants of Vernonia cinerea (L.) Less. An Antioxidant, Anti-inflammatory Medicinal Plant”, Plant Tissue Cult. & Biotech., vol. 20, no. 2, pp. 127–131, Jan. 2011.