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Quality matters: A brief guide to quality assurance in agri..:

Zschocke, T ; Beniest, J ; Nelles, W
Zschocke, T.; Beniest, J.; Nelles, W. 2010. Quality matters: A brief guide to quality assurance in agricultural education and training. Nairobi (Kenya). World Agroforestry Centre. ISBN 978-92-9059-274-7. 47 p..  , 2016