A.K., Botirov, and Egamov S.Sh. “Modified Methods and Technical Techniques of Operations for ‘Difficult’ Duodenal Ulcers”. RA Journal of Applied Research 8, no. 10 (October 4, 2022): 742–745. Accessed April 4, 2025. http://rajournals.in/index.php/rajar/article/view/1012.