KUSWANTORO, A. V. .; AMRULLAH, M. Learning at SMA Muhammadiyah 4 Porong during The Pandemic Covid 19: Pembelajaran di SMA Muhammadiyah 4 Porong dimasa Pandemi Covid 19. Proceedings of The ICECRS, [S. l.], v. 10, 2021. DOI: 10.21070/icecrs20211179. Disponível em: https://icecrs.umsida.ac.id/index.php/icecrs/article/view/1179. Acesso em: 18 sep. 2025.