Soler, Josep, Imma Boada, Ferran Prados, Jordi Poch, and Ramon Fabregat. “A Formative Assessment Tool for Conceptual Database Design Using UML Class Diagram”. International Journal of Emerging Technologies in Learning (iJET) 5, no. 3 (August 9, 2010): pp. 27–33. Accessed April 28, 2024. https://online-journals.org/index.php/i-jet/article/view/1402.