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1by Otoo, J., Dixon, A., Asiedu, Robert, Okeke, J., Maroya, N., Tougnon, K., Okoli, O., Tetteh, J., Hahn, S.
Published 1994-11Journal Article bibliotecaCGIAR -
2by Otoo, J., Dixon, A., Asiedu, Robert, Okeke, J.E., Maroya, N., Tougnon, K., Okoli, O., Tetteh, J.P., Hahn, S.K.
Published 1994-11Conference Paper bibliotecaCGIAR