1. Akiyama T, Duncan RC (1982) Analysis of the world coffee market. World Bank Staff Commodity Working Paper n 7
2. Alger K, Caldas M (1996) Cacau na Bahía: decadência e ameaça à Mata Atlântica. Ciência hoje, (20):28–35
3. Angelsen A, Kaimowitz D (2001) Agricultural technologies and tropical deforestation. CABI Publishing, Wallingford 422 pp
4. Barrett CB, Reardon T, Webb P (2000) Nonfarm income diversification and household livelihood strategies in rural Africa: concepts, dynamics, and policy implications. Food Policy 16(4):315–331
5. Basterrecha T, Penot E, Ruf F, Le Grusse P (2011) Diversification et durabilité: introduction des arbres à bois dans les cacaoyères. Le cas de Samreboi, au sud-ouest du Ghana. In: Penot E, (ed) Exploitations agricoles, stratégies paysannes et politiques publiques. Les apports du modèle Olympe. Éditions Quae, Versailles, France, pp 77–95