Extracting Functional and Non-Functional Requirements for E-learning Systems. The International Journal of Educational Sciences and Arts, [S. l.], v. 2, n. 5, 2023. DOI: 10.59992/IJESA.2023.v2n5p3. Disponível em: https://www.vsrp.co.uk/index.php/ijesa/article/view/610. Acesso em: 30 aug. 2026.