Putri, A.Z. et al. 2025. Relationship Between Age, Coffee Consumption and Smoking with The Incidence of Gastro Esophageal Reflex Disease (GERD). Jurnal Biologi Tropis. 25, 1 (Jan. 2025), 26–34. DOI:https://doi.org/10.29303/jbt.v25i1.8324.