Miller RE (February 1966). "Flavoring barium sulfate". The American Journal of Roentgenology, Radium Therapy, and Nuclear Medicine. 96 (2): 484–487. doi:10.2214/ajr.96.2.484. PMID5908404.
Stuart MC, Kouimtzi M, Hill S, eds. (2009). WHO model formulary 2008. World Health Organization. pp. 315, 317. hdl:10665/44053. ISBN978-92-4-154765-9.
World Health Organization (2023). The selection and use of essential medicines 2023: web annex A: World Health Organization model list of essential medicines: 23rd list (2023). Geneva: World Health Organization. hdl:10665/371090. WHO/MHP/HPS/EML/2023.02.
"Barium Swallow". Health Library Guide to the diagnosis, treatment and prevention of conditions from A to Z. Johns Hopkins Hospital. Archived from the original on 28 July 2014.
Miller RE (February 1966). "Flavoring barium sulfate". The American Journal of Roentgenology, Radium Therapy, and Nuclear Medicine. 96 (2): 484–487. doi:10.2214/ajr.96.2.484. PMID5908404.
"Barium Swallow". Health Library Guide to the diagnosis, treatment and prevention of conditions from A to Z. Johns Hopkins Hospital. Archived from the original on 28 July 2014.
"Barium Sulfate". MedlinePlus Drug Information. U.S. National Library of Medicine. 15 July 2016. Archived from the original on 5 July 2014.