@BOOK {DAVID:2007a, title = {A facilitator's handbook for conducting farmer field schools on cocoa integrated crop and pest management}, author = {David, S. and Agordorku, S. and Bassanaga, S. and Couloud, J. Y. and Adu-Kumi, M. and Okuku, I. and Wandji, D. }, year = {2007}, publisher = {International Institute of Tropical Agriculture (IITA)}, address = {Accra, Ghana}, }