VUOJÄRVI, H. .; ERIKSSON, M. .; VARTIAINEN, H. . Cross-Boundary Collaboration and Problem-Solving to Promote 21st Century Skills— Students’ Experiences. International Journal of Learning, Teaching and Educational Research, [S. l.], v. 18, n. 13, p. 30–60, 2019. Disponível em: http://www.ijlter.net/index.php/ijlter/article/view/327. Acesso em: 2 may. 2026.