CONCEPTShttp://eurovoc.europa.eu/2858eurovoc.europa.euhttp://lod.gesis.org/thesoz/concept/10036844lod.gesis.orghttp://lod.nal.usda.gov/nalt/12929lod.nal.usda.govhttp://www.fao.org/countryprofiles/geoinfo/geopolitical/resource/south-eastern_Asiawww.fao.org。