Institute of Medicine (1998). 〈Niacin〉. 《Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline》. Washington, DC: The National Academies Press. 123–149쪽. ISBN978-0-309-06554-2. 2018년 8월 29일에 확인함.