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2. Historical review of medicinal plants′ usage
3. South African Traditional Medicinal Plants from Kwazulu-Natal;Paulsen,2012
4. The Medicinal and Poisonous Plants of Southern and Eastern Africa: Being an Account of Their Medicinal and Other Uses, Chemical Composition, Pharmacological Effects and Toxicology in Man and Animal;Watt,1962
5. The Useful Plants of West Tropical Africa;Burkill,1985–2000