Table 4 List of organizational databases to be used for searching gray literature

Bioversity International

https://www.bioversityinternational.org/

Center for International Forestry Research (CIFOR)

https://www.cifor.org

Climate Change Agriculture and Food Security (CCAFS)

https://ccafs.cgiar.org/publications/

Consultative Group for International Agricultural Research (CGIAR)

https://ciat.cgiar.org/publications/ciat-library-resources/

Ecoagriculture Partners

https://ecoagriculture.org/resources/publications/

Food and Agricultural Organization

https://www.fao.org

French Agricultural Research and International Cooperation Organization for The Sustainable Development of Tropical and Mediterranean Regions

www.cirad.fr

International Development Research Centre (IDRC)

https://www.idrc.ca/en

International Food Policy Research Institute Library (IFPRI)

http://library.ifpri.info/

International Institute of Tropical Agriculture (IITA)

https://www.iita.org/knowledge/publications/

International Impact Initiative (3ie)

https://www.3ieimpact.org/evidence-hub/publications

International Institute for Environment and Development (IIED)

https://pubs.iied.org/

South Asian Network for Development and Environmental Economics (SANDEE)

http://www.sandeeonline.org/publicationdisp_main.php

The Economics of Ecosystems and Biodiversity

http://teebweb.org/publications/

TROPENBOS Sustainable Land Use

https://www.tropenbos.org/resources/publications?theme_title=Sustainable+land+use

Tropical Agricultural Research and Higher Education Center (CATIE)

http://www.catie.ac.cr/en/

World Resources Institute (WRI)

https://www.wri.org/publication

CABI Agriculture and Bioscience

http://www.cabdirect.org/