Susanto, F M, Badriul Hegar, and Agus Firmansyah. “Upper Gastrointestinal Endoscopy and Histopathology Appearance in Indonesian Children With Recurrent Epigastric Pain”. The Indonesian Journal of Gastroenterology, Hepatology, and Digestive Endoscopy 8, no. 3 (January 12, 2007): 67–70. Accessed November 6, 2026. https://www.ina-jghe.com/index.php/jghe/article/view/206.