„Folate”. Micronutrient Information Center, Linus Pauling Institute, Oregon State University. . Accesat în . Folate is a water-soluble B-vitamin, which is also known as vitamin B9 or folacin.
web.archive.org
„Folic Acid”. Drugs.com. American Society of Health-System Pharmacists. . Arhivat din original la . Accesat în .