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A socio-economic survey among Thai farmers, with special reference to fertilizer use
Donner, Wolf (contributor); Puthigorn, Banlu (contributor);  … - 1972
Persistent link: https://www.econbiz.de/10003241693
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The marketing of fertilizer in Thailand : 1.preliminary economic report
Donner, Wolf; Puthigorn, Banlu - 1970
Persistent link: https://www.econbiz.de/10002079441
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The fertilizer market in Thailand
Donner, Wolf (contributor); Puthigorn, Banlu (contributor);  … - 1970 - Rev
Persistent link: https://www.econbiz.de/10003135805