1. Ahtiainen, R., Beirad, M., Hautamäki, J., Hilasvuori, T., & Thuneberg, H. (2011). Samanaikaisopetus On Mahdollisuus. Tutkimus Helsingin Pilottikoulujen Uudistuvasta Opetuksesta. Helsinki Department of Education.
2. Basic Education Act. (628/1998). Available at: https://www.finlex.fi/fi/laki/kaannokset/1998/en19980628.pdf. Accessed 24 Jan 2020.
3. Brooks, D. C. (2011). Space matters: The impact of formal learning environments on student learning. British Journal of Educational Technology, 42(5), 719–726.
4. Council of Europe. (n.d.). What is the ELP? Available at: https://www.coe.int/en/web/portfolio/introduction. Accessed 21 Jan 20.
5. Dörnyei, Z., & Ushioda, E. (2013). Teaching and researching motivation (2nd ed.). Routledge.