9,695 Siti Sarah Binti Mohd Sinin 2020-06-26 https://uses.plantnet-project.org/en/Brassica_oleracea_-_headed_cabbage_(PROTA) van der Vossen, H.A.M. & Seif, A.A. (2004). Brassica oleracea L. (headed cabbage) . Retrieved from https://uses.plantnet-project.org/en/Brassica_oleracea_-_headed_cabbage_(PROTA) https://worldoffloweringplants.com/brassica-oleracea-wild-cabbage/ World of Flowering Plants. (2013-2020). Brassica oleracea (Wild Cabbage). Retrieved from https://worldoffloweringplants.com/brassica-oleracea-wild-cabbage/