Agustin, S. P. .; Amrullah, M. Implementation of Discipline Character Education at SMP Muhammadiyah 10 Sidoarjo During The Covid-19 Pandemic: Implementasi Pendidikan Karakter Disiplin Di SMP Muhammadiyah 10 Sidoarjo Dimasa Pandemi Covid-19. icecrs 2021, 10.