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Ellis-Jones, J. ,  Schulz, S. ,  Chikoye, D. ,  Haan, N. de ,  Kormawa, P.M. ,  Adedzwa, D. ,  [Participatory research and extension approaches: IITA research guide, No. 71] ,  Participatory research and extension approaches: IITA research guide, No. 71

Kamara, A.Y. ,  Ellis-Jones, J. ,  Ekeleme, F. ,  Omoigui, L.O. ,  Amaza, P. ,  Chikoye, D. ,  Dugje, I.Y. ,  [A participatory evaluation of improved cowpea cultivars in the Guinea and Sudan savanna zones of north east Nigeria] ,  A participatory evaluation of improved cowpea cultivars in the Guinea and Sudan savanna zones of north east Nigeria

Emechebe, A. ,  Ellis-Jones, J. ,  Schulz, S. ,  Chikoye, D. ,  Douthwaite, Boru ,  Kureh, I ,  Tarawali, G. ,  Hussaini, M.A. ,  Kormawa, P.M. ,  Sanni, AO ,  [Farmers´ perception of the striga problem and its control in Northern Nigeria] ,  Farmers´ perception of the striga problem and its control in Northern Nigeria

Ellis-Jones, J. ,  Schulz, S. ,  Douthwaite, Boru ,  Hussaini, M.A. ,  Oyewole, BD ,  Olanrewaju, AS ,  White, R ,  [An assessment of integrated Striga hermonthica control and early adoption by farmers in Northern Nigeria] ,  An assessment of integrated Striga hermonthica control and early adoption by farmers in Northern Nigeria

Emechebe, A.M. ,  Ellis-Jones, J. ,  Schulz, S. ,  Chikoye, D. ,  Douthwaite, Boru ,  Kureh, I. ,  Tarawali, G. ,  Hussaini, M.A. ,  Kormawa, P.M. ,  Sanni, A. ,  [Farmer perception of the Striga problem and its control in northern Nigeria] ,  Farmer perception of the Striga problem and its control in northern Nigeria

Amaza, P.S. ,  Ellis-Jones, J. ,  Kamara, A.Y. ,  Helsen, J. ,  Gaya, H.I. ,  [A participatory adoption of improved crop technologies in the savannas of West Africa: empirical study from Borno, Nigeria] ,  A participatory adoption of improved crop technologies in the savannas of West Africa: empirical study from Borno, Nigeria