© 2017: Leena Aarto-Pesonen, Päivi Tynjälä, and Nova Southeastern
University. This is an open access article distributed under the terms of the Creative Commons License.
Ellei muuten mainita, aineiston lisenssi on © 2017: Leena Aarto-Pesonen, Päivi Tynjälä, and Nova Southeastern University. This is an open access article distributed under the terms of the Creative Commons License.