T. Dzenda, J. O. Ayo, A. B. Adelaiye, A. O. Adaudi, and N. D. Ibrahim, “Preliminary Investigation Into The Acute Oral Toxicity Of <i>Tephrosia vogelii</i> Leaves In Mice”, Nig. Vet. J., vol. 28, no. 2, pp. 47–52, May 2008.