//-->
Beobachtungen zur Reaktion kleiner Landbewirtschafter in Togo auf Berater und Beratung
Müller, Julius Otto, (1967)
Extension, planning, and the poor
Jiggins, Janice, (1977)
Technological change in subsistence agriculture : the adoption and diffusion of fertilizer in Ethiopias̕ minimum package programme areas
Aklilu, Bisrat, (1976)
Theory and practice in project evaluation: Colonization in Brazil
Francis, David G., (1994)
Family Agriculture: Tradition and Transformation
Francis, David G., (1997)