Katerere, D. 2018. Effects of extracts of <i>Sutherlandia frutescens</i>on drug transport and drug metabolising enzymes. Suid-Afrikaans Tydskrif vir Natuurwetenskap en Tegnologie / <i>South African Journal of Science and Technology</i&gt;. 37, 1 (Oct. 2018), 61-65.