BOJANIC, A., MARSHALL, E. AND SCHRECKENBERG, K. (2001). Metodologia de investigacion del mercadeo de PFNM y los programa de los seminarios Oaxaca, Mexico y La Paz, Bolivia: Meses 8-9-10 2001, World Conservation Monitoring Centre (UNEP-WCMC), Cambridge, UK, 27 pp
Atta-Krah, Kwesi, 'Biodiversité : La ressource la plus riche', ICT Update, vol. 52, Technical Centre for Agricultural and Rural Cooperation, Wageningen, 2009
Waugh, John; Matepi, Mona; Rommily, George de, 'Adapting to climate change: Adapting to risk', ICT Update, vol. 63, Technical Centre for Agricultural and Rural Cooperation, Wageningen, 2011