Ikhwan I, Riani R. The efficiency level of Indonesian banks in the Covid-19 pandemic era and its determinant. J. Eko. Keu. Isl. [Internet]. 2022 Aug. 3 [cited 2024 Nov. 25];8(2):221-35. Available from: https://journal.uii.ac.id/JEKI/article/view/22096