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Tetteh, F. ,  Larbi, Asamoah ,  Nketia, K.A. ,  Senayah, J.K. ,  Hoeschle-Zeledon, I. ,  Abdulrahman, N. ,  [Suitability of soils for cereal cropping in northern Ghana] ,  Suitability of soils for cereal cropping in northern Ghana

Kotu, Bekele Hundie ,  Fischer, G. ,  Muthoni, F. ,  Abass, A. ,  Hoeschle-Zeledon, I. ,  Bekunda, Mateete A. ,  [Exploring farmers’ willingness to pay for small scale maize shelling machines in Tanzania] ,  Exploring farmers’ willingness to pay for small scale maize shelling machines in Tanzania