Sholikhah, N., B. . Fakih, M. N. . Felamani, and B. . Huda. “Analysis of The Covid-19 Pandemic Impact on Operational Risk At Muamalat Bank Lamongan Sub-Branch Office: Analisis Dampak Pandemi Covid-19 Terhadap Risiko Operasional Pada Bank Muamalat Kantor Cabang Pembantu Lamongan”. El-Qist: Journal of Islamic Economics and Business (JIEB), vol. 11, no. 2, Nov. 2021, pp. 136-50, doi:10.15642/elqist.2021.11.2.136-150.