Suharinto, C. 2026. Advancing PSA Maturity Level 4 Through a Web-Based PHP–MySQL Predictive Dashboard for Hospital Utilities and Medical Gases. Indonesian Journal of Electronics, Electromedical Engineering, and Medical Informatics. 8, 2 (May 2026), 218–232. DOI:https://doi.org/10.35882/ijeeemi.v8i2.329.