Darmadi, Darmadi, Riska Habriel Ruslie, and Carolus Trianda Samosir. “Gallstone Ileus: A Case Report”. Open Access Macedonian Journal of Medical Sciences 8, no. C (July 30, 2020): 121–124. Accessed May 4, 2024. https://oamjms.eu/index.php/mjms/article/view/4657.