1. Butterworth, J.H., Morgan, E.D., 1968. Isolation of a substance that suppresses feeding in locust. J. Chem. Soc. Chem. Commun., 23–24.
2. Ermel, K., 1995. Azadirachtin content of neem seed kernels from different regions of the world. In: Schmutterer, H. (Ed.), The Neem Tree, Source of Unique Natural Products for Integrated Pest Management, Medicine, Industry and Other Purposes. VCH, Weinheim, pp. 89–92.
3. Isolation of novel azadirachtin H and I by high-performance liquid chromatography;Govindachari;Chromatographia,1991
4. Structure of azadirachtin K, a new tetranortriterpenoid from Azadirachta indica;Govindachari;Indian J. Chem.,1992
5. Rapid separation of triterpenoids from neem seed extracts;Jarvis;Phytochem. Anals.,1999