Febriani IR, Amrullah M. Efforts of SMP Muhammadiyah 5 Reinforcement in Improving Learning Activities During the Covid-19 Pandemic: Upaya SMP Muhammadiyah 5 Tulangan dalam Meningkatkan Aktivitas Pembelajaran Selama Pandemi Covid-19. icecrs [Internet]. 2021 Oct. 6 [cited 2025 Oct. 11];10. Available from: https://icecrs.umsida.ac.id/index.php/icecrs/article/view/1168