Kuswantoro, A. V. ., and M. Amrullah. “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, vol. 10, Oct. 2021, doi:10.21070/icecrs20211179.