P3DM workshop proceeding and reports Posted On October 4, 2011 By Amanuel In Reports / This is a proceeding of an international conference on participatory mapping and reports of the process of building Participatory 3 Dimentional Models facilitated by MELCA-Ethiopia at its three project sites. Read the PDF file. MELCA's Newsletter Vol. 1 No. 3 Farmers’ Knowledge and Agro-Biodiversity Described by Scholars as the Pillars to Food Security Leave a Reply Cancel reply Notify me of follow-up comments by email. Notify me of new posts by email.