Putri, M. L. K. ., & Amrullah, M. (2021). The Influence of Online Learning on the Development of Students at SD Muhammadiyah 5 Porong During the Covid Pandemic: Pengaruh Pembelajaran Online Terhadap Perkembangan Siswa SD Muhammadiyah 5 Porong di Tengah Pandemi Covid 19. Proceedings of The ICECRS, 10. https://doi.org/10.21070/icecrs20211172