An impact assessment of the cassava enterprise development project - Tarawali, G.; Abdoulaye, Tahirou; Ellis-Jones, J.; Asumugha, G.N.; Dixon, A.; Okechukwu, R.; Ezedinma, C.I.; Sanni, Lateef O.; Isife, B.; Ogisi, D.; Ekpere, J. (International Institute of Tropical Agriculture, 2013)