KANDEEL, R. A. A. Analysis Of Errors In Limits Of Trigonometric Functions Among Students at King Saud University. Advances in Social Sciences Research Journal, [S. l.], v. 4, n. 3, 2017. DOI: 10.14738/assrj.43.2683. Disponível em: https://journals.scholarpublishing.org/index.php/ASSRJ/article/view/2683. Acesso em: 21 may. 2024.