Navigating the Contradictions of ePortfolio Implementation: A Practice-Based Approach Through the Lens of Activity Theory. Journal of University Teaching and Learning Practice, [S. l.], v. 22, n. 3, 2025. DOI: 10.53761/nmtkkn86. Disponível em: https://open-publishing.org/journals/index.php/jutlp/article/view/1174. Acesso em: 22 jul. 2025.