1. Le Floc’h, E. (1983).Contribution of the ethnobotanical study of the Tunisian flora. Eds Ministry of the Higher Education and Scientific Research, Tunis, Tunisia (in French).
2. Oury, P. (1984).Encyclopedia of medicinal plants and flowers, vol IV. Eds Alliance, Paris, France (in French).
3. Shibamoto, T. (1987).Retention indices in essential oils analysis. In Capillary Gas Chromatography in Essential Oil Analysis; Sandra, P., Bicchi, C., eds. Dr Alfred Heuthig Verlag, Heidelberg.