By ROBBINS, P., BIKANDE, F., FERRIS, S., HODGES, R., KLEIH, U., OKOBOI, G. and WANDSCHNEIDER, T.
Chatham, UK: Natural Resources Institute. ISBN: 0 85954 565 2.(2004)
Thia manual is designed to assist the staff of service providers (SPs) supporting small-scale farming communities to advise farmers on how best to work together to increase the value of goods they sell using group markeing strategies.
Available for download here [1]