Ohtonen Piuva, Aida, Elin Mårtensson, Ann-Sofi Röj-Lindberg, and Mats Braskén. “Finnish Pre-Service Teachers’ Basic Mathematical Skills : A Comparison Between 2008 and 2020”. FMSERA Journal 6, no. 2 (December 20, 2024): 42–57. Accessed December 27, 2024. https://journal.fi/fmsera/article/view/127787.