W. DRAA, E.; R SEMANA, A.; ADOLPH, B. Comparing the processes used for assessing farmers’ demand for research and advisory services. Uganda Journal of Agricultural Sciences, [S. l.], v. 9, n. 1, p. 89–102, 2004. Disponível em: http://journal.naro.go.ug/index.php/ujas/article/view/203. Acesso em: 21 nov. 2024.