Aditya Hartini, M. Ihsan Ramadhani. Analysis Of Online Learning Implementation In Schools During The Covid-19 Pandemic. J. Sus. Dev. Sci. [Internet]. 2022 Jun. 23 [cited 2026 Apr. 6];4(1):20-3. Available from: http://ejournal.undwi.ac.id/index.php/jsds/article/view/1261