By Laurent Catherine   Cerf Marianne   Labarthe Pierre   in The Journal of Agricultural Education and Extension

ISSN:1389-224X|12|1|5-16

Routledge Ltd‎(2006)‎

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By Klerkx Laurens   Koutsouris Alex   Labarthe Pierre   in The Journal of Agricultural Education and Extension

ISSN:1389-224X|19|3|217-221

Routledge Ltd‎(2013)‎

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