1. FAO, FAOSTAT (2002). http://apps.fao.org/page/collections?subset=agriculture .
2. Hanounik SB, Jellis GJ and Hussein MM (1993). Screening for disease resistance in faba bean. In: Singh KB, Saxena MC (eds.), Breeding for stress tolerance in cool-season food legumes. John Wiley & Sons, Chichester, UK, pp. 97–106.
3. Robertson LD and Saxena MC (1993). Problems and prospects of stress resistance breeding in faba bean. In: Singh KB, Saxena MC (eds.), Breeding for stress tolerance in cool-season food legumes. John Wiley & Sons, Chichester, UK, pp. 37–50.
4. Vanraamsdonk V (1995). The effect of domestication on plant evolution. Acta Botanica Neerlandica, 44: 421–438.
5. Maxted N (1993). A phenotypic investigation of Vicia L. subgenus Vicia (Leguminosae, Vicieae). Botanical Journal of the Linnean Society, 111: 155–182.