ASSESMENT OF INTERNAL SERVICE QUALITY DIMENSIONS USING THE TOPSIS METHOD TO IMPROVE SERVICE QUALITY AT THE OUTPATIENT REGISTRATION SITES AISYIYAH SITI FATIMAH TULANGAN HOSPITAL. IJEIRC [Internet]. 2025 Oct. 30 [cited 2025 Nov. 26];2(10):55-72. Available from: https://e-journal.antispublisher.id/index.php/IJEIRC/article/view/381