Okpalanwaka, I.F. et al. 2020. Evaluation of In vivo and In vitro Screening of the Antitrypanosomal Properties of Methanol Leaf Extract and Fractions of Trichilia heudelotii Oliv. (Meliaceae): doi.org/10.26538/tjnpr/v4i12.28. Tropical Journal of Natural Product Research (TJNPR). 4, 12 (Dec. 2020), 1196–1200.