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[Rezension von: Alternative agriculture, by the Committee on the Role of Alternative Farming Methods in Modern Production Agriculture, Board on Agriculture, National Research Counc...
Zyl, Johan A. van - In: Development Southern Africa : quarterly journal 7 (1990) 2, pp. 289-295
Persistent link: https://www.econbiz.de/10001344192
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[Rezension von: Monke, Eric A., ..., The policy analysis matrix for agricultural development]
Zyl, Johan A. van - In: Development Southern Africa : quarterly journal 7 (1990) 1, pp. 133-140
Persistent link: https://www.econbiz.de/10001344236
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Interrelationships in maize markets in Southern Africa
Zyl, Johan A. van - In: Development Southern Africa : quarterly journal 6 (1989) 3, pp. 340-348
Persistent link: https://www.econbiz.de/10001272150
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Interrelationships in maize markets in Southern Africa
Zyl, Johan A. van - In: Development Southern Africa : quarterly journal 6 (1989) 2, pp. 202-215
Persistent link: https://www.econbiz.de/10001070064
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Agricultural education and training in South Africa : an overview
Rooyen, Johan van - In: Development Southern Africa : quarterly journal 13 (1996) 5, pp. 713-731
Persistent link: https://www.econbiz.de/10001216421
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The mini farmer approach : a case study of the South African tea industry
Zyl, Johan A. van - In: Development Southern Africa : quarterly journal 9 (1992) 3, pp. 365-381
Persistent link: https://www.econbiz.de/10001134351
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Flexibility in input substitution : a case study of South African agriculture
Zyl, Johan A. van - In: Development Southern Africa : quarterly journal 5 (1988) 1, pp. 2-13
Persistent link: https://www.econbiz.de/10001049070
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Labour trends in agriculture: the case of the summer rainfall grain producing area
Zyl, Johan A. van - In: Development Southern Africa : quarterly journal 4 (1987) 1, pp. 90-110
Persistent link: https://www.econbiz.de/10001026788
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A comparison of the contribution and relative performance of agriculture in Southern Africa
Rooyen, C. J. van - In: Development Southern Africa : quarterly journal 4 (1987) 2, pp. 183-198
Persistent link: https://www.econbiz.de/10001027097
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The economic impact of irrigation agriculture : methodological aspects and an empirical application
Kirsten, J. F. - In: Development Southern Africa : quarterly journal 7 (1990) 2, pp. 209-222
Persistent link: https://www.econbiz.de/10001091095