1. Brook, P. J. (1969).Journal of Stored Products Research,5, 203–209.
2. Cheeke, P. R. &Shull, L. R. (1985). Natural toxicants in feeds and poisonous plants, AVI Publishing Co, Westport, Connecticut, USA. pp 456–460.
3. CIAT (1984). Annual Report 1984. Tropical pastures program. Centro Internacional de Agricultura Tropical.
4. Dollahite, J. N., Younger, R. L. &Jones, L. P. (1977).Journal of the American Veterinary Medical Association,171, 1264–1265.
5. Garcia, O., Aycardi, E. R., Zuluaga, F. N., Rivera, B. &Henao, F. J. (1982).ACOVEZ,6(21), 5–11.