1. et al. 1993. Traditional Aboriginal Medicines in the Northern Territory of Australia by Aboriginal Communities of the Northern Territory. Conservation Commission of the Northern Territory: Darwin.
2. Screening of medicinal plants from Trinidad and Tobago for antimicrobial and insecticidal properties
3. Plant Products as Antimicrobial Agents
4. 2003. Bioautography and characterization of the antimicrobial compounds present in commercial annatto extracts. Abstract 92A-2. Institute of Food Technologists Annual Meeting: Chicago, USA.
5. 1998. Phytochemical Analysis: A Guide to Modern Techniques of Plant Analysis, 3rd edn. Chapman & Hall: London.