Tarigan, Karisma Erikson, and Margaret Stevani. “The Impact of Covid-19 on Online Learning in K12 Indonesian Schools: Macro, Meso, and Micro Levels”. International Journal of Arts and Humanities Studies, vol. 1, no. 1, Oct. 2021, pp. 23-32, https://doi.org/10.32996/ijahs.2021.1.1.4.