@MISC {GOCKOWSKI:2005b, title = {Initial assessment of the producer costs and benefits of farmer field school training}, author = {Gockowski, J. and David, S. and Okuku, I. and Nkeh, J. and Wandji, D. and Asamoah, C. and Agordorku, S. and Adu, M. }, year = {2005}, month = {April}, howpublished = {STCP Impact Brief, No. 03}, note = {Impact Assessment; Learning Material; 3p.}, }