A Comparative Study of Student Mathematical Performance in three modes of Teaching and Learning Education during the Covid-19 Pandemic . International Journal of Current Educational Studies, [S. l.], v. 1, n. 1, p. 36–50, 2022. DOI: 10.5281/zenodo.6762580. Disponível em: https://ijces.net/index.php/ijces/article/view/1. Acesso em: 23 nov. 2024.