JOHNSON, Genevieve Marie. Optional online quizzes: College student use and relationship to achievement. Canadian Journal of Learning and Technology, [S. l.], v. 32, n. 1, 2006. DOI: 10.21432/T2J300. Disponível em: https://cjlt.ca/index.php/cjlt/article/view/26481. Acesso em: 2 apr. 2026.