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2by Solomon Bekure, Dyson-Hudson, N., Grandin, B.E., Semenye, P.P., Pasha, I.K.O., Chabari, F.N.
Published 1982Report bibliotecaCGIAR -
3by Bekure, S., Leeuw, P.N. de, Pasha, I.K.O., Tessema, S., Woie, B.M., Maranga, E.K., Shaabani, S.B.
Published 1986Working Paper bibliotecaCGIAR