Darnindro, N. et al. 2020. Prevalence of Gastroesophageal Reflux Disease (GERD) in Dyspepsia Patients in Primary Referral Hospital. The Indonesian Journal of Gastroenterology, Hepatology, and Digestive Endoscopy. 19, 2 (July 2020), 91–96. DOI:https://doi.org/10.24871/192201891-96.