Hariyani, H.R. et al. 2026. Analysis of Antibiotic Use in Outpatient Pneumonia Patients at X Blitar Health Center using the Gyssens Method and the Defined Daily Dose. Borneo Journal of Pharmacy. 9, 2 (June 2026), 225–234. DOI:https://doi.org/10.33084/bjop.v9i2.11327.