O. Diovu, E. et al. 2022. Sesquiterpene Lactone-Rich Extract of Tithonia diversifolia (Hemsley) A. Gray (Asteraceae) suppresses Trypanosoma brucei brucei in both In Vivo and In Vitro Experimental Models: doi.org/10.26538/tjnpr/v6i8.18. Tropical Journal of Natural Product Research (TJNPR). 6, 8 (Aug. 2022), 1268–1273.