1. Abondo, A., Mbenkum, F., Thomas, D., 1991. Traditional medicinal plants. Dar Es Salaam University Press - Ministry of Health – Tanzania, 391.
2. Quinine, an old anti-malarial drug in a modern world: role in the treatment of malaria;Achan;Malar. J.,2011
3. SuperSweet-a resource on natural and artifcial sweetening agents;Ahmed;Nucleic Acids Res.,2011
4. Safety and evaluation of phytosterol esters. Part 1. Assessment of oestrogenicity using a combination ofin vitro and in vivo assays;Baker;Food Chem. Toxicol.,1999
5. Plant products as antimicrobial agents;Cowan;Clin. Microbiol. Rev.,1999