VIVITMONGKORNCHAI, Korkiat, et al. “A Case Report: EXTRAHEPATIC BILIARY CYSTADNOCARCINOMA ARISING FROM COMMON HEPATIC DUCT”. The ASEAN Journal of Radiology, vol. 1, no. 3, Mar. 2023, pp. 119-22, https://www.asean-journal-radiology.org/index.php/ajr/article/view/278.