1. Adoukonou-Sagbadja H., Dansi A., Vodouhè R. and Akpagana K. 2003. Collecting fonio (Digitaria exilis Stapf, D. iburua Stapf) landraces in Togo. Plant Genetic Resources Newsletter (In press).
2. Berlin B. 1992. Ethnobotanical Classification. Principles of categorization of plants and animals in traditional societies. Princeton, New York, 335 pp.
3. Bezpaly I. 1984. Les Plantes Cultivées en Afrique Occidentales. Editions MIR, Moscow pp.84–87.
4. Christinck A., Vom Brocke K., Kshirsagar K.G., Weltzien E. and Bramel-Cox P.J. 2000. Participatory methods for collecting germplasm: experiences with farmers in Rajasthan, India. Plant Gen. Resour. Newslet. 121: 1–9.
5. Clayton W.D. and Renvoze S.A. 1986. Genera Graminum, Grasses of the World. Kew Bull, Additional Series XIII.