Al-Smadi, Mohammad, Christian Guetl, and Frank Kappe. “Peer Assessment System for Modern Learning Settings: Towards a Flexible E-Assessment System”. International Journal of Emerging Technologies in Learning (iJET) 5, no. SI2 (March 18, 2010): pp. 5–11. Accessed April 26, 2024. https://online-journals.org/index.php/i-jet/article/view/1229.