1. The global market for organic food & drink;Sahota,2017
2. Current statistics on organic agriculture worldwide: Area, operators, and market;Lernoud,2017
3. Organic farming and market development in Europe and the European Union;Willer,2017
4. Land use and commodities in organic agriculture;Lernoud,2017
5. Informe del Consumo de Alimentación en España 2014http://www.magrama.gob.es/es/alimentacion/temas/consumo-y-comercializacion-y-distribucion-alimentaria/informeconsumoalimentacion2014_tcm7-382148.pdf