ANALYSIS OF BANK OPERATIONAL PERFORMANCE EFFICIENCY USING OPERATIONAL COST RATIO ON OPERATIONAL INCOME AT PT. BPR CENTRAL SEJAHTERA TANJUNGPINANG. CASH [Internet]. 3 Juni 2021 [dikutip 1 Januari 2026];1(02):29-38. Tersedia pada: https://journal.stie-pembangunan.ac.id/index.php/cash/article/view/2224