Patil, Anita Surendra, et al. “VALIDATION OF ACCUMULATION OF CAMPTOTHECIN CONTENT, AN ANTI-CANCER ALKALOID IN NOTHAPODYTES NIMMONIANA GRAHAM. IN PHENOTYPIC VARIANTS: METHOD FOR IDENTIFYING HIGH-YIELDING SOURCES OF ALKALOID”. International Journal of Pharmacy and Pharmaceutical Sciences, vol. 8, no. 9, Sept. 2016, pp. 19-23, doi:10.22159//ijpps.2016.v8i9.10751.