1. Addaquay J (2004) The shea butter value chain: refining in West Africa. WATH Technical Report No. 3, USAID, Washington, DC
2. Alander J (2004) Shea butter – a multifunctional ingredient for food and cosmetics. Lipid Technol 16(9):202–205
3. Belcher B, Schreckenberg K (2007) Commercialisation of non-timber forest products: a reality check. Dev Pol Rev 25:355–377
4. Bernal R (1998) Demography of the vegetable ivory palm Phytelephas seemannii in Colombia, and the impact of seed harvesting. J Appl Ecol 35:64–74
5. Brinckmann JA (2008) China and other East Asian countries. In: Market news service for medicinal plants and extracts, vol 27. International Trade Centre (ITC)/UNCTAD/WTO, Geneva, Switzerland, pp 16–18