Romlah, Romlah, Okta Rosfiani, Ade Ratna Putri Rahayu, Alfiansyah Syahro, and Nabil Alfian. 2023. “Problems of Online Learning in the Covid-19 Pandemic Era”. International Journal of Multidisciplinary Approach Research and Science 2 (01):465-74. https://doi.org/10.59653/ijmars.v2i01.536.