1. Some observations on the toxic effects of the seed extract ofSphenostylis stenocarpa (Hochst ex A. Rich) Harms. on intestinal muscle
2. , and (1986). The Merck Veterinary Manual, 6th Ed. pp. 1568–1580 Merck and Co. Inc., New Jersey.
3. and (1979). Medical Botany pp. 236–261. John Wiley and Sons, New York.
4. The Biological Assay of Vegetable Purgatives
5. (1970). Pharmacological Experiments on Intact Preparations, pp. 86–87. Churchill Livingstone, Edinburgh.