Firdaus, A. ., and M. Amrullah. “Learning Strategies at SD Muhammadiyah 2 Sidoarjo During the Covid-19 Pandemic: Strategi Pembelajaran SD Muhammadiyah 2 Sidoarjo Di Tengah Pandemi Covid-19”. Proceedings of The ICECRS, vol. 10, Aug. 2021, doi:10.21070/icecrs20211157.