1. Azmi. (2021, January 11). Surat edaran nomor 1/SE/2021 tentang persiapan pembelajaran tatap muka (PTM) semester genap tahun pelajaran 2020/2021. Dinas Pendidikan. https://disdik.jakarta.go.id/article/1537-surat-edaran-nomor-1se2021-tentang-persiapan-pembelajaran-tatap-muka-ptm-semester-genap-tahun-pelajaran-20202021/.
2. Brandtzæg, P. B., Heim, J., & Karahasanović, A. (2011). Understanding the new digital divide—A typology of Internet users in Europe. International Journal of Human-Computer Studies, 69(3), 123–138. https://doi.org/10.1016/j.ijhcs.2010.11.004.
3. Brown, N., te Riele, K., Shelley, B., & Woodroffe, J. (2020). Learning at home during COVID-19: Effects on vulnerable young Australians. Peter Underwood Centre for Educational Attainment, University of Tasmania. https://www.dese.gov.au/system/files/doc/other/learning_at_home_during_covid_30042020.pdf.
4. Buys, P., Dasgupta, S., Thomas, T. S., & Wheeler, D. (2009). Determinants of a digital divide in Sub-Saharan Africa: A spatial econometric analysis of cell phone coverage. World Development, 37(9), 1494–1505. https://doi.org/10.1016/j.worlddev.2009.01.011.
5. CNN Indonesia (2020, April 24). Kemendikbud buat skenario belajar di rumah sampai akhir 2020. https://www.cnnindonesia.com/nasional/20200424114337-20-496861/kemendikbud-buat-skenario-belajar-di-rumah-sampai-akhir-2020.