MICHAEL, Onuoha. Addressing Pedagogical Usability and Mobility Barriers in E-learning Systems. International Journal of Formal Sciences: Current and Future Research Trends, Jordan, v. 22, n. 1, 2025. Disponível em: https://ijfscfrtjournal.isrra.org/Formal_Sciences_Journal/article/view/241. Acesso em: 22 nov. 2025.