Wyniki
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Smallholders Commercialization of Maize Production in Guangua District, Northwestern Ethiopia
Yallew Mazengia
World Scientific News 58 (2016) s. 65-83 -
Assessment of Seed Systems in North Western Ethiopia; with Special Emphasis on Community Based Seed Multiplication Schem
Abebaw Assaye, Adane Melak, Birhanu Ayalew, Dessalegn Teshale, Yalew Mazengia
World Scientific News 12 (2015) s. 100-110