R, Uma Shaanker and BT, Ramesha and Gudasalamani, Ravikanth and R, Gunaga and Ramesh, Vasudeva and KN, Ganeshaiah (1970) Chemical Profiling of Nothapodytes nimmoniana for Camptothecin, an Important Anticancer Alkaloid: Towards the Development of a Sustainable Production System. In: Bioactive Molecules and Medicinal Plants. Springer, pp. 197-213. ISBN 978-3-540-74603-4