Hidayanto, Arif, Sumarno Adi Subrata, and Puguh Widiyanto. “Prevalence and Characteristics of Peptic Ulcer in Patients Presenting With Hematemesis and or Melena Undergoing Esophagogastroduodenoscopy: A Descriptive Study”. Innovation in Health for Society 5, no. 1 (December 24, 2024): 21–30. Accessed September 23, 2026. https://journal.unimma.ac.id/ihs/article/view/12514.