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Preferences and constraints of maize farmers in the development and adoption of improved varieties in the mid-altitude, sub-humid agro-ecology of Western Ethiopia
(Academic Journalshttp://www.academicjournals.org/ajar/abstracts/abstracts/Abstracts%202013/18Apr/Abera%20et%20al.htm, 2013)
Maize diversity, market access, and poverty reduction in the Western Highlands of Guatemala
(International Mountain Society, 2017)
The seed industry for dryland crops in Eastern Kenya
(CIMMYT, 2012)
Changes in the ways of life of farmers in the northwest of Portugal after 1980
(Revista Ceres, 2017)