1. Antimalarial natural products. Isolation, characterization and biological properties;Christensen,2001
2. Antimalarial plants used by Hausa in Northern Nigeria;Etkin;Tropical Doctor,1997
3. Phytochemical methods;Harbone,1983
4. In vivo testing in the study of toxicity and safety evaluation;Homburger,1989
5. Flora of West Tropical Africa;Hutchinson,1968