2,178 Nurul Jannah Abdullah 2019-10-16 http://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=275981 Missouri Botanical Garden. (nd). Apium graveolens var. dulce. Retrieved from http://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=275981 http://ecocrop.fao.org/ecocrop/srv/en/cropView?id=432 Food and Agriculture Organization of the UN. ECOCROP. (1993-2007). Apium graveolens var. dulce. Retrieved from http://ecocrop.fao.org/ecocrop/srv/en/cropView?id=432