1. World Health Organization. COVID-19 weekly epidemiological update. World Heal Organ. 2021;(58):1–23.
2. Kemensesneg R.I. Government Regulation Of The Republic Of Indonesia Number 21 Of 2o2o [Peraturan Pemerintah Republik Indonesia Nomor 21 Tahun 2o2o]. Peraturan Pemerintah Republik Indonesia. 2020.
3. Samudera W. The Impact of the Covid-19 Pandemic in the Field of Education in Mataram City [Dampak Pandemi Covid-19 dalam Bidang Pendidikan di Kota Mataram]. Indones J Teach Educ. 2020;3(1):154–8.
4. Nikodemus Thomas Martoredjo. Covid-19 Pandemic: Threats or Opposition to the Education Sector [Pandemi Covid-19: Ancaman atau Tentangan bagi Sektor Pendidikan]. J Pendidik. 2020;2(1):1–15.
5. Nor Aisyah Amini. Impact of the Covid-19 Pandemic on the Education Sector Especially. J Pendidik Psikol. 2020;4:86–7.