The Usage Frequency and User-Friendliness of Online Platforms among Pre-University Students during Covid-19 Pandemic . International Journal of Academic Research in Progressive Education and Development, [S. l.], v. 11, n. 1, 2022. Disponível em: https://www.ijarped.com/index.php/journal/article/view/1883. Acesso em: 14 may. 2026.