Rahmawati, Y. M., L. . Hakim, and T. . Murwaningsih. “Effectiveness of Online Learning During the Covid-19 Pandemic on Economic Subjects in High Schools”. Eduvest - Journal of Universal Studies, vol. 1, no. 8, Aug. 2021, pp. 810-2, doi:10.59188/eduvest.v1i8.183.