Thaiyanan, P., S. Somwangprasert, and S. Makankawkayoon. “Alpha-Fetoprotein in Patient With Liver Cancer and Relation to Hepatitis B Surface Antigenn”. Journal of Associated Medical Sciences, vol. 14, no. 1, July 2016, p. 35, https://he01.tci-thaijo.org/index.php/bulletinAMS/article/view/61910.