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Intra-annual sheep price patterns and factors underlying price variations in the central highlands of Ethiopia
Andargachew, K., (1993)
Formulating beef rations for improved performance under environmental stress
Brokken, Ray F., (1971)
A COMPARISON OF ECONOMIC IMPACT ESTIMATES FOR CHANGES IN THE FEDERAL GRAZING FEE: SECONDARY VS. PRIMARY DATA I/O MODELS
Radtke, Hans, (1985)