http://pagesperso-orange.fr/ginkgo.dm/GINKGO/Gbextract.htm
http://www.chiro.org/nutrition/ABSTRACTS/What_is_Ginkgo_biloba.shtml
http://www.ginkgoenergy.com/Ginkgo_Biloba_Leaf.html
http://www.freepatentsonline.com/6001393.html براءة
http://ecam.oxfordjournals.org/cgi/content/full/1/3/277 دراسة هامة
http://www.sciencedaily.com/releases/2005/10/051031124249.htm
http://www.ualberta.ca/~csps/JPPS7(3)/I.Kanfer/ginkgo.htm دراسة
http://www.shvoong.com/business-management/1604817-effect-ginkgo-biloba-extract-egb761/
http://circoutcomes.ahajournals.org/cgi/content/abstract/3/1/41
http://ukpmc.ac.uk/articlerender.cgi?artid=952057 لا يتبع النبات
http://www.chiro.org/nutrition/ABSTRACTS/What_is_Ginkgo_biloba.shtml
http://www.ginkgoenergy.com/Ginkgo_Biloba_Leaf.html
http://www.freepatentsonline.com/6001393.html براءة
http://ecam.oxfordjournals.org/cgi/content/full/1/3/277 دراسة هامة
http://www.sciencedaily.com/releases/2005/10/051031124249.htm
http://www.ualberta.ca/~csps/JPPS7(3)/I.Kanfer/ginkgo.htm دراسة
http://www.shvoong.com/business-management/1604817-effect-ginkgo-biloba-extract-egb761/
http://circoutcomes.ahajournals.org/cgi/content/abstract/3/1/41
http://ukpmc.ac.uk/articlerender.cgi?artid=952057 لا يتبع النبات