Nurlaela E, Ponirah A. PENGARUH OPERATING EFFICIENCY RATIO (OER) DAN NON PERFORMING FINANCING (NPF) TERHADAP PROFITABILITA PADA BANK UMUM SYARIAH PERIODE 2014-2020. AKSY [Internet]. 2023 Jan. 13 [cited 2025 Dec. 18];4(2):33-48. Available from: http://103.55.33.27/index.php/aksy/article/view/23388