Syah Putra, A., D. Disniarti, H. . Oktaviani, W. . Sari, and L. . Apriani. “The Influence of the Covid 19 Virus and Online Learning on the Education System for Islamic Subjects”. International Journal of Educational Research &Amp; Social Sciences, vol. 2, no. 3, June 2021, pp. 476-81, doi:10.51601/ijersc.v2i3.92.