Ratan, Md Ezharul Haque, Hasina Alam, and Md Abdul Karim. “Laparoscopic Cost Effective Management of Cholecystoduodenal Fistula”. Bangladesh Critical Care Journal 5, no. 2 (October 22, 2017): 110–112. Accessed December 12, 2025. https://www.banglajol.info/index.php/BCCJ/article/view/34389.