F. R. Aigbe and A. D. S. O. Adeyemi, O.O., “AN EVALUATION OF THE ANALGESIC ACTION OF AQUEOUS LEAVES EXTRACT OF HYBANTHUS ENNEASPERMUS LINN. F. MUELL [VIOLACEAE] IN RODENTS”, UJMST, vol. 4, no. 2, pp. 1-13, Feb. 2019.