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1Policy Research Working Paper bibliotecaBanco Mundial
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2Policy Research Working Paper bibliotecaBanco Mundial
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3by Cropper, Maureen L., Haile, Mitiku, Lampietti, Julian A., Poulos, Christine, Whittington, Dale
Published 2000-01Working Paper bibliotecaBanco Mundial -
4by Ahmed, Kulsum, Awe, Yewande, Barnes, Douglas F., Cropper, Maureen L., Kojima, Masami
Published 2005Publication bibliotecaBanco Mundial