Gestsdóttir, Súsanna Margrét, Jannet van Drie, og Carla van Boxtel. “Teaching Historical Thinking and Reasoning in Upper Secondary Schools in Iceland: Results of an Observation Study”. Nordidactica. Journal of Humanities and Social Science Education 9, no. 2019:2 (august 13, 2019): 90–113. Set december 15, 2025. https://journals.lub.lu.se/nordidactica/article/view/19962.