Kouloumpis, Dionisios, Theodora Papageorgiou, and Κaterina Κasimatis. “Promoting Educational Work Using Modern Educational Assessment Tools: Creating and Implementing Rubrics for Assessing Projects and the Cultivation of 21st-Century Skills”. New Trends and Issues Proceedings on Humanities and Social Sciences 6, no. 7 (December 31, 2019): 189–196. Accessed March 29, 2024. https://un-pub.eu/ojs/index.php/pntsbs/article/view/4527.