Molefe, N.I. et al. 2012. In vitro anthelmintic effects of Artemisia afra and Mentha longifolia against parasitic gastro-intestinal nematodes of livestock. Bangladesh Journal of Pharmacology. 7, 3 (Aug. 2012), 157–163. DOI:https://doi.org/10.3329/bjp.v7i3.11437.