Juwanto, J., Manan, C., & Rani, A. A. (2001). Diagnostic Value of Barium Esophagogram and Bernstein Test in Patients with Esophagitis. The Indonesian Journal of Gastroenterology, Hepatology, and Digestive Endoscopy, 2(1), 5–13. https://doi.org/10.24871/2120015-13