Ateka, Josiah, Onono, Perez, Etyang, Martin. (1398). Does Participation in Farmer Field School Extension Program Improve Crop Yields? Evidence from Smallholder Tea Production Systems in Kenya. نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 9(4), 409-423.
Josiah Ateka; Perez Onono; Martin Etyang. "Does Participation in Farmer Field School Extension Program Improve Crop Yields? Evidence from Smallholder Tea Production Systems in Kenya". نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 9, 4, 1398, 409-423.
Ateka, Josiah, Onono, Perez, Etyang, Martin. (1398). 'Does Participation in Farmer Field School Extension Program Improve Crop Yields? Evidence from Smallholder Tea Production Systems in Kenya', نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 9(4), pp. 409-423.
Ateka, Josiah, Onono, Perez, Etyang, Martin. Does Participation in Farmer Field School Extension Program Improve Crop Yields? Evidence from Smallholder Tea Production Systems in Kenya. نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 1398; 9(4): 409-423.


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