Setyawati, K., Abdullah, M., Syam, A.F., Fauzi, A., Makmun, D., Simadibrata, M., Manan, C. and Rani, A.A. 2008. The Role of Esophageal pH-metri Test on Gastro-Esophageal Reflux Disease Diagnosis. The Indonesian Journal of Gastroenterology, Hepatology, and Digestive Endoscopy. 9, 3 (Jan. 2008), 91–97. DOI:https://doi.org/10.24871/93200891-97.