1.
Kokko T, Pesonen H, Kontu E, Pirttimaa R. Why Study Online in Upper Secondary School? Qualitative Analysis of Online Learning Experiences. HT [Internet]. 2015 May 1 [cited 2026 Jul. 17];11(1):57–70. Available from: https://ht.csr-pub.eu/index.php/ht/article/view/162