Simbolon VA, Simbolon RF. PENGARUH NET INTEREST MARGIN DAN NON PERFORMING LOAN TERHADAP RETURN ON ASSETS PADA BANK KECIL TAHUN 2019-2020. jeko [Internet]. 2021Nov.24 [cited 2025Apr.3];14(3c). Available from: https://jurnal.unai.edu/index.php/jeko/article/view/2678