Marlina, L., A. . Saepulloh, and S. V. . Dewi. “The Impact of the Covid-19 Pandemic on the Efficiency Performance of Islamic Banks in Indonesia: A Two-Stage Data Envelopment Analysis Approach”. Al-Uqud : Journal of Islamic Economics, vol. 8, no. 1, Apr. 2024, https://journal.unesa.ac.id/index.php/jie/article/view/27241.